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1.
Anisotropy of the
electromechanical characteristics of SH-waves and Lamb waves in yttrium aluminum borate single crystals / P. P. Turchin, S. I. Burkov, V. I. Turchin [et al.]> // J. Sib. Fed. Univ. Math. Phys. - 2022. -
Vol. 15
,
Is. 1
. - P. 80-87 ; Журн. СФУ. Матем. и физика,
DOI
10.17516/1997-1397-2022-15-1-80-87. - Cited References: 24. - The study was carried out within the framework of the state assignment of the Ministry of Science and Higher Education of the Russian Federation (research project code FSRZ-2020-0011) . - ISSN 1997-1397. - ISSN 2313-6022
Перевод заглавия:
Анизотропия и электромеханические характеристики SH-волн и волн Лэмба в монокристаллах иттриевого алюмобората
РУБ
Mathematics
Кл.слова (ненормированные):
surface acoustic, SH and Lamb waves
--
piezoelectrics
--
multiferroics
--
yttrium aluminum
borates
--
поверхностные акустические, SH- и Лэмба волны
--
пьезоэлектрики
--
мультиферроики
--
алюмоборат иттрия
Аннотация:
The anisotropy of the electromechanical properties of SH-waves and Lamb waves in yttrium aluminum
borates
, which are nonmagnetic representatives of the RMe3(BO3)4 single crystals family (where R=Y, La-Lu; M=Fe, Al, Cr, Ga, Sc) with unique properties of magnetoelectrics and multiferroics, has been studied. In the process of the numerical simulation of the acoustic waves characteristics, the values of linear electromechanical constants of YAl3(BO3)4 single crystals, previously measured by ultrasonic pulse echo and quasi-static methods, have been used.
Исследована анизотропия электромеханичеких характеристик SH-волн и волн Лэмба в иттриевых алюмоборатах, которые являются немагнитным представителем семейства монокри- сталлов RMe3(BO3)4 (где R=Y, La-Lu; M=Fe, Al, Cr, Ga, Sc) с уникальными свойствами магнитоэлектриков и мультиферроиков. При численном моделировании характеристик акустических волн использованы значения линейных электромеханических постоянных монокристаллов YAl3(BO3)4, измеренных ранее ультразвуковым эхо-импульсным и квазистатическим методами.
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Держатели документа:
Siberian Fed Univ, Krasnoyarsk, Russia.
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk, Russia.
Доп.точки доступа:
Turchin, Pavel P.; Турчин, Павел Петрович; Burkov, S. I.; Turchin, Vladimir, I; Pletnev, Oleg N.; Chulkova, Marina Yu; Nechepuryshina, Anastasia G.; Ministry of Science and Higher Education of the Russian Federation [FSRZ-2020-0011]
}
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2.
Chukalina, E. P.
Study of the magnetic properties of neodymium and samarium iron
borates
by the method of erbium spectroscopic probe / E. P. Chukalina, A. Jablunovskis, I. A. Gudim> // Opt. Spectrosc. - 2023. -
Vol. 131
,
Is. 8
. - P. 630-636,
DOI
10.1134/S0030400X23060024. - Cited References: 30. - This paper was carried out under financial support of the Russian Science Foundation (grant № 19-12-00413) . - ISSN 0030-400X. - ISSN 1562-6911
Кл.слова (ненормированные):
multiferroics
--
optical spectroscopy
--
crystals with rare earths
--
Kramers ions
Аннотация:
Iron
borates
NdFe3(BO3)4 and SmFe3 (BO3)4 activated with 1% erbium, with ahuntite structure (space symmetry group R32) were investigated by the method of erbium spectroscopic probe. From an analysis of the temperature dependence of the transmission spectra in the region of the 4I15/2 → 4113/2 transition in the Er3+ ion, it was found that both studied compounds order antiferromagnetically at TN ≈ 33 K into an easy-plane magnetic structure. No other phase transitions were found.
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Публикация на русском языке
Чукалина Е. П. Исследование магнитных свойств ферроборатов неодима и самария методом спектроскопического эрбиевого зонда [Текст] / Е. П. Чукалина, А. Яблуновский, И. А. Гудим // Опт. и спектроскоп. - 2022. - Т. 130 Вып. 1. - С. 104-110
Держатели документа:
Institute of Spectroscopy, Russian Academy of Sciences, 108840, Troitsk, Moscow, Russia
Moscow Institute of Physics and Technology (National Research University), 141701, Dolgoprudny, Moscow oblast, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, 660036, Krasnoyarsk, Russia
Доп.точки доступа:
Jablunovskis, A.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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3.
Chukalina, E. P.
Study of the magnetic properties of neodymium and samarium iron
borates
by the method of erbium spectroscopic probe / E. P. Chukalina, A. Jablunovskis, I. A. Gudim> // Opt. Spectrosc. - 2022. -
Vol. 130
,
Is. 1
. - P. 98-104,
DOI
10.21883/EOS.2022.01.52993.23-21. - Cited References: 30. - This paper was carried out under financial support of the Russian Science Foundation (grant № 19-12-00413) . - ISSN 0030-400X. - ISSN 1562-6911
Кл.слова (ненормированные):
multiferroics
--
optical spectroscopy
--
crystals with rare earths
--
Kramers ions
Аннотация:
Iron
borates
NdFe3(BO3)4 and SmFe3(BO3)4 activated with 1% erbium, with a huntite structure (space symmetry group R32) were investigated by the method of erbium spectroscopic probe. From an analysis of the temperature dependence of the transmission spectra in the region of the 4I15/2 → 4I13/2 transition in the Er3+ ion, it was found that both studied compounds order antiferromagnetically at TN ≈ 33 K into an easy-plane magnetic structure. No other phase transitions were found.
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Публикация на русском языке
Чукалина Е. П. Исследование магнитных свойств ферроборатов неодима и самария методом спектроскопического эрбиевого зонда [Текст] / Е. П. Чукалина, А. Яблуновский, И. А. Гудим // Опт. и спектроскоп. - 2022. - Т. 130 Вып. 1. - С. 104-110
Держатели документа:
Institute of Spectroscopy, Russian Academy of Sciences, Troitsk, Moscow, Russia
Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB, Russian Academy of Sciences, Krasnoyarsk, Russia
Доп.точки доступа:
Jablunovskis, A.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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4.
Comparing the magnetic
and magnetoelectric properties of the SmFe3(BO3)4 ferroborate single crystals grown using different solvents / E. Eremin [et al.]> // J. Cryst. Growth. - 2019. -
Vol. 518
. - P. 1-4,
DOI
10.1016/j.jcrysgro.2019.04.017. - Cited References: 17. - This study was supported by the Russian Foundation for Basic Research (RFBR) according to the research projects No. 18-02-00696_a and RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund by project No. 18-42-240011 p_a. . - ISSN 0022-0248. - ISSN 1873-5002
РУБ
Crystallography + Materials Science, Multidisciplinary + Physics, Applied
Рубрики:
POLARIZATION
FEATURES
Кл.слова (ненормированные):
Impurities
--
Growth from solutions
--
Single crystal growth
--
Borates
--
Ferroelectric materials
--
Magnetic materials
Аннотация:
SmFe3(BO3)4 single crystals have been grown from the bismuth trimolybdate and lithium tungstate-based melt–solutions. Samarium ferroborate single crystals were grown first from the lithium–tungstate flux. The magnetic and magnetoelectric properties of the synthesized crystals have been compared. It is shown that the SmFe3(BO3)4 ferroborate grown from the bismuth trimolybdate-based melt–solution contains impurities of Bi3+ ions (∼5% at.), which replace Sm3+ ions, while the SmFe3(BO3)4, ferroborate grown from the lithium tungstate-based melt–solution contains minor or zero amounts of such impurities. The magnetoelectric and magnetodielectric effects with the Bi3+ admixture appeared 1.5× stronger than in SmFe3(BO3)4; this is probably due to twinning.
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Держатели документа:
Fed Res Ctr KSC SB RAS, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Siberian State Univ Sci & Technol, Krasnoyarsk 660037, Russia.
Доп.точки доступа:
Eremin, E. V.; Еремин, Евгений Владимирович; Gudim, I. A.; Гудим, Ирина Анатольевна; Temerov, V. L.; Темеров, Владислав Леонидович; Smolyakov, D. A.; Смоляков, Дмитрий Александрович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Russian Foundation for Basic Research (RFBR) [18-02-00696_a]; RFBR, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund [18-42-240011 p_a]
}
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5.
Coupled R and
Fe magnetic excitations in RFe 3(BO 3) 4 multiferroics / A. M. Kuzmenko [et al.]> //
Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. -
Vol. 190
. - P. 269-272,
DOI
10.4028/www.scientific.net/SSP.190.269 . - ISBN 9783037854365
Кл.слова (ненормированные):
Magnetic resonance
--
Rare-earth iron
borates
--
Terahertz spectroscopy
--
Antiferromagnetics
--
Coupled mode
--
Exchange coupled
--
Frequency ranges
--
G factors
--
Iron borate
--
Magnetic excitations
--
Multiferroics
--
Resonance mode
--
Strong interaction
--
Transmission spectrums
--
Antiferromagnetism
--
Electron transitions
--
Gadolinium
--
Ions
--
Magnetic materials
--
Magnetic permeability
--
Magnetic resonance
--
Terahertz spectroscopy
--
Neodymium
Аннотация:
Various resonance modes were observed in the transmission spectra of rare-earth iron
borates
RFe 3(BO 3) 4 (R = Nd 3+, Sm 3+, Gd 3+) at the frequency range 100-600 GHz, which were attributed to collective magnetic excitations in the exchange coupled Fe- and R-subsystems, i.e. antiferromagnetic (Fe) resonance and electron transitions in the R-ions. Strong interaction of the Fe and R oscillations was revealed and theoretically analyzed taking into account feature of the R-ion ground state. Intensities of the coupled modes (contributions to magnetic permeability) strongly depend on a difference of Fe and R ions g-factors that allows defining the sign of the latter. In particular, an appreciable intensity of exchange (Nd) modes in NdFe 3(BO 3) 4 is caused by g Nd?,|| < 0 whereas in GdFe 3(BO 3) 4 with gGd ? gFe ? 2 the exchange (Gd) modes were hided due to compensation of Fe and Gd contributions. In SmFe 3(BO 3) 4, despite a negligible Sm g-factor, the Sm modes were clear observed due to their excitation via coupling with the Fe-subsystem. В© (2012) Trans Tech Publications.
Scopus
Доп.точки доступа:
Kuzmenko, A. M.; Кузьменко А.М.; Mukhin, A. A.; Ivanov, V.Yu.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Moscow International Symposium on Magnetism(5 ; 2011 ; Aug. ; 21-25 ; Moscow)
}
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6.
Crystal growth of
ReCa3Mn3O3(BO3)4 (Re = Gd, Y) gaudefroyite: Phase sequence and equilibrium study in multi-component fluxes / E. Moshkina, N. Belskaya, Z. Bashleev [et al.]> // J. Cryst. Growth. - 2022. -
Vol. 600
. - Ст. 126917,
DOI
10.1016/j.jcrysgro.2022.126917. - Cited References: 32. - The study was supported by the Russian Science Foundation (grant No. 21-72-00130). The X-ray, and EDX data were obtained using the analytical equipment of the Krasnoyarsk Regional Center of Research Equipment of the Federal Research Center “Krasnoyarsk Science Center SB RAS” . - ISSN 0022-0248
Кл.слова (ненормированные):
Phase equilibria
--
Growth from solutions
--
Borates
--
Gaudefroyites
Аннотация:
The work is aimed at studying the crystallization of ReCa3Mn3O3(BO3)4 (Re = Gd, Y)
borates
with the gaudefroyite structure in different flux systems. Gaudefroyites are promising materials in the field of spin ice and magnetocaloric effect. The study has been performed on systems based on the following solvents: Bi2Mo3O12-Na2B4O7-B2O3, Bi2O3-Na2B4O7-B2O3, Bi2O3-BaO-Na2B4O7-B2O3, Li2WO4-Li2O-B2O3. The influence of the solvent components on the sequence of high-temperature crystallizing phases has been studied. The feature of Mo- and W-containing fluxes consisting in the formation of stable chemical bonds of the M2+Mo(W)O4 (M = Ca, Mn) molybdate or tungstate types has been revealed which prevents the formation of gaudefroyite type bonds. An approach has been suggested for changing the sequence of the crystallizing phases which consists in the super saturation of molybdate (tungstate) bonds by Na+ or Li+ cations up to the formation of delafossite-type bonds (Li(Na)-Mn-O phase) with higher manganese valence states Mn3+ and Mn4+. The optimization of the growth conditions of ReCa3(MnO)3(BO3)4 (Re = Gd, Y) gaudefroyite crystals has allowed one to obtain single crystal samples with the size up to 0.8 × 0.8 × 5 mm3. The structural characterization and chemical composition of all the obtained phases are also presented.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Ioffe Institute, Saint Petersburg, 194021, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation
Research and Development Department, Kemerovo State University, Kemerovo, 650000, Russian Federation
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Krasnoyarsk, 660049, Russian Federation
Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Siberian State University of Science and Technologies, Krasnoyarsk, 660037, Russian Federation
Доп.точки доступа:
Moshkina, E. M.; Мошкина, Евгения Михайловна; Belskaya, N.; Bashleev, Z.; Башлеев, Зоригто Егорович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Soloviev, L.; Shabanova, K.
}
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7.
Crystal structure dynamics
of RFe3(BO3)4 single crystals in the temperature range 25–500 K / O. A. Alekseeva, E. S. Smirnova, K. V. Frolov [et al.]> // Crystals. - 2022. -
Vol. 12
,
Is. 9
. - Ст. 1203,
DOI
10.3390/cryst12091203. - Cited References: 67. - This research was funded by the Ministry of Science and Higher Education within the State assignment FSRC ‘Crystallography and Photonics’ RAS 075-01025-22-00 . - ISSN 2073-4352
Кл.слова (ненормированные):
rare-earth iron
borates
--
low-temperature X-ray diffraction
--
single crystals
--
structural distortions
--
temperature structural dynamics
--
exchange and super-exchange interaction
--
Mossbauer spectroscopy
Аннотация:
The multiferroic RFe3(BO3)4 family is characterized by diverse magnetic, magnetoelectric, and magnetoelastic properties, the fundamental aspects of which are essential for modern electronics. The present research, using single-crystal X-ray diffraction (XRD) and Mossbauer spectroscopy (MS) in the temperature range of 25–500 K, aimed to analyze the influence of local atomic coordination on magnetoelectric properties and exchange and super-exchange interactions in RFe3(BO3)4. Low-temperature, single-crystal XRD data of the magnetically ordered phase of RFe3(BO3)4 at 25 K, which were obtained for the first time, were supplemented with data obtained at higher temperatures, making it possible to draw conclusions about the mechanism of the structural dynamics. It was shown that, in structures with R = Gd, Ho, and Y (low-temperature space group P3121), a shift in oxygen atoms (O2, second coordination sphere of R atoms) was accompanied by rotation of the B2O3 triangle toward R atoms at low temperatures, and by different rearrangements in iron chains of two types, in contrast to Nd and Sm iron
borates
(space group R32). These rearrangements in the structures of space group P3121 affected the exchange and super-exchange paths at low temperatures. The MS results confirm the influence of the distant environment of atoms on the magnetoelectric properties of rare-earth iron
borates
at low temperatures.
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Держатели документа:
Shubnikov Institute of Crystallography of Federal Scientific Research Centre ‘Crystallography and Photonics’, Russian Academy of Sciences, Moscow, 119333, Russian Federation
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Alekseeva, O. A.; Smirnova, E. S.; Frolov, K. V.; Lyubutina, M. V.; Lyubutin, I. S.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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8.
Crystal structure of
bismuth-containing samarium iron–aluminium
borates
Sm1−xBixFe3−yAly(BO3)4 (x = 0.05–0.07, y = 0–0.28) in the temperature range of 25–500 K / E. S. Smirnova, O. A. Alekseeva, V. V. Artemov [et al.]> // Crystals. - 2023. -
Vol. 13
,
Is. 7
. - Ст. 1128,
DOI
10.3390/cryst13071128. - Cited References: 59. - This work was supported by the Russian Science Foundation (project No 23-22-00286) . - ISSN 2073-4352
Кл.слова (ненормированные):
rare-earth iron–aluminium
borates
--
solid solutions
--
low-temperature X-ray diffraction
--
single crystals
--
temperature structural dynamics
--
negative thermal expansion
Аннотация:
Structural features of new mixed bismuth-containing samarium iron–aluminium borate single crystals Sm1−xBixFe3−yAly(BO3)4 (x = 0.05–0.07, y = 0–0.28) were studied using X-ray diffraction analysis based on aluminium content and temperature in the range 25–500 K. The crystals were grown using the solution-in-melt technique with Bi2Mo3O12 in a flux. The composition of the single crystals was analyzed using energy-dispersive X-ray fluorescence and energy-dispersive X-ray elemental analysis. Temperature dependencies of Sm1−xBixFe3−yAly(BO3)4 unit-cell parameters were studied. Negative thermal expansion was identified below 100 K and represented by characteristic surfaces of the thermal expansion tensor. (Sm,Bi)–O, (Sm,Bi)–(Fe,Al), (Fe,Al)–(Fe,Al), and (Fe,Al)–O interatomic distances decreased with the addition of aluminium atoms. An increase in the (Fe,Al)–(Fe,Al) intrachain bond length at low temperatures in the magnetically ordered state weakened this bond, whereas a decrease in the (Fe,Al)–(Fe,Al) interchain distance strengthened super-exchange paths between different chains. It was found that the addition of aluminium atoms influenced interatomic distances in Sm1−xBixFe3−yAly(BO3)4 much more than lowering the temperature from 293 K to 25 K. The effect of aluminium doping on magnetoelectric properties and structural symmetry of rare-earth iron
borates
is also discussed.
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Держатели документа:
Shubnikov Institute of Crystallography of Federal Scientific Research Centre ‘Crystallography and Photonics’, Russian Academy of Sciences, Moscow 119333, Russia
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Smirnova, E. S.; Alekseeva, O. A.; Artemov, V. V.; Sorokin, T. A.; Khmelenin, D. N.; Sidorova, E. V.; Frolov, K. V.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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9.
Crystal structure, phase
transition and structural deformations in iron borate (Y0.95Bi0.05)Fe3(BO3)4 in the temperature range 90–500 K / E. S. Smirnova [et al.]> // Acta Crystallogr. B. - 2018. -
Vol. 74
. - P. 226-238,
DOI
10.1107/S2052520618002962. - Cited References:27. - The following funding is acknowledged: Russian Foundation for Basic Research (award No. 17-02-00766) and Federal Agency of Scientific Organizations (Agreement No 007-GZ/Ch3363/26). . - ISSN 2052-5206
РУБ
Chemistry, Multidisciplinary + Crystallography
Рубрики:
HIGH-PRESSURES
GDFE3(BO3)4
SPECTROSCOPY
IFEFFIT
Кл.слова (ненормированные):
rare-earth iron
borates
--
crystal structure
--
structural phase transition
--
structural deformations
Аннотация:
An accurate X-ray diffraction study of (Y0.95Bi0.05)Fe3(BO3)4 single crystals in the temperature range 90–500 K was performed on a laboratory diffractometer and used synchrotron radiation. It was established that the crystal undergoes a diffuse structural phase transition in the temperature range 350–380 K. The complexity of localization of such a transition over temperature was overcome by means of special analysis of systematic extinction reflections by symmetry. The transition temperature can be considered to be Tstr ≃ 370 K. The crystal has a trigonal structure in the space group P3121 at temperatures of 90–370 K, and it has a trigonal structure in the space group R32 at 375–500 K. There is one type of chain formed by the FeO6 octahedra along the c axis in the R32 phase. When going into the P3121 phase, two types of nonequivalent chains arise, in which Fe atoms are separated from the Y atoms by a different distance. Upon lowering the temperature from 500 to 90 K, a distortion of the Y(Bi)O6, FeO6, B(2,3)O3 coordination polyhedra is observed. The distances between atoms in helical Fe chains and Fe—O—Fe angles change non-uniformly. A sharp jump in the equivalent isotropic displacement parameters of O1 and O2 atoms within the Fe—Fe chains and fluctuations of the equivalent isotropic displacement parameters of B2 and B3 atoms were observed in the region of structural transition as well as noticeable elongation of O1, O2, B2, B3, Fe1, Fe2 atomic displacement ellipsoids. It was established that the helices of electron density formed by Fe, O1 and O2 atoms may be structural elements determining chirality, optical activity and multiferroicity of rare-earth iron
borates
. Compression and stretching of these helices account for the symmetry change and for the manifestation of a number of properties, whose geometry is controlled by an indirect exchange interaction between iron cations that compete with the thermal motion of atoms in the structure. Structural analysis detected these changes as variations of a number of structural characteristics in the c unit-cell direction, that is, the direction of the helices. Structural results for the local surrounding of the atoms in (Y0.95Bi0.05)Fe3(BO3)4 were confirmed by EXAFS and Mössbauer spectroscopies.
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Держатели документа:
Russian Acad Sci, Fed Sci Res Ctr Crystallog & Photon, Shubnikov Inst Crystallog, Moscow 119333, Russia.
Natl Res Ctr, Kurchatov Inst, Moscow 123182, Russia.
Russian Acad Sci, Inst Phys, Siberian Branch, Krasnoyarsk 660036, Russia.
Доп.точки доступа:
Smirnova, Ekaterina S.; Alekseeva, O. A.; Dudka, Alexander P.; Artemov, V. V.; Zubavichus, Yan V.; Gudim, I. A.; Гудим, Ирина Анатольевна; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Frolov, Kirill V.; Lyubutin, Igor S.; Russian Foundation for Basic Research [17-02-00766]; Federal Agency of Scientific Organizations [007-GZ/Ch3363/26]
}
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10.
Determination of the
magnetic structure of SmFe3(BO3)4 by neutron diffraction: comparison with other RFe3(BO3)4 iron
borates
/ C. Ritter [et al.]> // J. Phys.: Condens. Matter. - 2012. -
Vol. 24
,
Is. 38
. - Ст. 386002,
DOI
10.1088/0953-8984/24/38/386002. - Cited References: 40. - This work was supported by RFBR, grant No. 10-02-00765. . - ISSN 0953-8984
РУБ
Physics, Condensed Matter
Рубрики:
SPIN REORIENTATION
EARTH
GDFE3(BO3)4
BEHAVIOR
Аннотация:
Temperature dependent neutron diffraction studies were performed on SmFe3(BO3)4. The crystallographic structure was determined to stay as R32 over the whole studied temperature range of 2 K ‹ T ‹ 300 K. A magnetic phase transition characterized by the magnetic propagation vector κ = [0 0 3/2] takes place at TN = 34 K. The magnetic structure sees an easy-plane arrangement within the trigonal basal a–b-plane of ferromagnetic layers of iron and samarium having a canting angle of about 70° relative to each other. Neighbouring layers in the c-direction are antiferromagnetically coupled; at 2 K the magnetic moment values amount to μFe = 4.2(1) μB and μSm = 0.8(2) μB. The non-Brillouin type increase of the iron magnetic moment below TN points to a strong Fe–Sm exchange and to the simultaneous appearance of long range magnetic order on both sublattices.
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Держатели документа:
[Ritter, C.] Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France
[Pankrats, A.
Gudim, I.
Vorotynov, A.] RAS, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
Доп.точки доступа:
Ritter, C.; Pankrats, A.I.; Панкрац, Анатолий Иванович; Gudim, I. A.; Гудим, Ирина Анатольевна; Vorotynov, A.M.; Воротынов, Александр Михайлович
}
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11.
Effect of Fe-substitution
on the structure and magnetism of single crystals Mn2-xFexBO4 / M. S. Platunov [et al.]> // J. Cryst. Growth. - 2017. -
Vol. 475
. - P. 239-246,
DOI
10.1016/j.jcrysgro.2017.06.026. - Cited References: 32. - This work has been financed in part by the grants of the Council for Grants of the President of the Russian Federation (project nos. SP-938.2015.5, NSh-7559.2016.2), the Russian Foundation for Basic Research (project nos. 16-32-60049 mol_a_dk, 16-32-00206 mol_a, 17-02-00826-a, 16-32-50058). . - ISSN 0022-0248
Кл.слова (ненормированные):
Low dimensional structures
--
Crystal structure
--
Single crystal growth
--
Borates
--
Magnetic materials
Аннотация:
Single crystalline Mn2-xFexBO4 with x = 0.3, 0.5, 0.7 grown by the flux method have been studied by means of X-ray diffraction and X-ray absorption spectroscopy at both Mn and Fe K edges. The compounds were found to crystallize in an orthorhombic warwickite structure (sp. gr. Pnam). The lattice parameters change linearly with x thus obeying the Vegard's law. The Fe3+ substitution for Mn3+ has been deduced from the X-ray absorption near-edge structure (XANES) spectra. Two energy positions of the absorption edges have been observed in Mn K-edge XANES spectra indicating the presence of manganese in two different oxidation states. Extended X-ray absorption fine structure (EXAFS) analysis has shown the reduction of local structural distortions upon Fe substitution. The magnetization data have revealed a spin-glass transition at TSG = 11, 14 and 18 K for x = 0.3, 0.5 and 0.7, respectively.
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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
ESRF-The European Synchrotron, Grenoble, France
National Research Centre “Kurchatov Institute”, Moscow, Russian Federation
Institute of Chemistry and Chemical Technology, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Доп.точки доступа:
Platunov, M. S.; Платунов, Михаил Сергеевич; Kazak, N. V.; Казак, Наталья Валерьевна; Knyazev, Yu. V.; Князев, Юрий Владимирович; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Moshkina, E. M.; Мошкина, Евгения Михайловна; Trigub, A. L.; Veligzhanin, A. A.; Zubavichus, Y. V.; Solovyov, L. A.; Velikanov, D. A.; Великанов, Дмитрий Анатольевич; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич
}
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12.
Effects of the
Interaction between R and Fe Modes of the Magnetic Resonance in RFe3(BO3)(4) Rare-Earth Iron
Borates
/ A. M. Kuz'menko [et al.]> // JETP Letters. - 2011. -
Vol. 94
,
Is. 4
. - P. 294-300,
DOI
10.1134/S0021364011160119. - Cited References: 27. - We are grateful to A. S. Prokhorov for discussion of this work and valuable comments. This work was supported by the Russian Foundation for Basic Research, project nos. 10-02-00846 and 09-02-01355, and the Ministry of Education and Science of the Russian Federation, project no. 16.518.11.7034. . - ISSN 0021-3640
Рубрики:
MULTIFERROICS
GDFE3(BO3)(4)
FERROELECTRICITY
Аннотация:
Resonance modes that are due to magnetic excitations in the exchange-coupled subsystems of rare-earth ions (R = Nd3+, Sm3+, and Gd3+) and Fe3+ ions have been detected in submillimeter transmission spectra (0.1-0.6 THz) of RFe3(BO3)(4) iron borate-multiferroic single crystals. The strong interaction between spin oscillations of the Fe and R subsystems has been revealed, which determines the behavior of the modes depending on the anisotropy of the exchange splitting of the ground doublet of the R ion. It has been shown that the intensities of coupled modes (contributions to the magnetic permeability) depend strongly on the difference between the g factors of Fe and R ions. This dependence makes it possible to determine the sign of the latter g factor. In particular, a noticeable intensity of exchange Nd modes in NdFe3(BO3)(4) is due to an increase in their contribution at g(perpendicular to,parallel to)(Nd) 0, while in GdFe3(BO3)(4) with g(Gd) approximate to g(Fe) approximate to 2, the Fe and Gd contributions compensate each other and the exchange (Gd) mode is not observed. In spite of the weak interaction of Sm ions with the magnetic field, SmFe3(BO3)(4) exhibits resonance modes, which are attributed to the excitation of Sm ions through the Fe subsystem. DOI: 10.1134/S0021364011160119
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Публикация на русском языке
Эффекты взаимодействия R- и Fe-мод магнитного резонанса в редкоземельных ферроборатах RFe3(BO3) 4 [Текст] / А. М. Кузьменко [и др.] // Письма в "Журн. эксперим. и теор. физ.". - 2011. - Т. 94 Вып. 3-4. - С. 318-324
Держатели документа:
[Kuz'menko, A. M.
Mukhin, A. A.
Ivanov, V. Yu.] Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia
[Kadomtseva, A. M.] Moscow MV Lomonosov State Univ, Moscow 119992, Russia
[Bezmaternykh, L. N.] Russian Acad Sci, Siberian Branch, Kirensky Inst Phys, Krasnoyarsk 660036, Russia
ИФ СО РАН
Prokhorov General Physics Institute, Russian Academy of Sciences, Moscow 119991, Russian Federation
Moscow State University, Moscow 119992, Russian Federation
Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation
Доп.точки доступа:
Kuz'menko, A. M.; Mukhin, A. A.; Ivanov, V. Y.; Kadomtseva, A. M.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич
}
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13.
Electronic band structures
of NdFe3(BO3)4 and NdGa3(BO3)4 crystals: ab initio calculations / S. Krylova, I. Gudim, A. Aleksandrovsky [et al.]> // Ferroelectrics. - 2021. -
Vol. 575
,
Is. 1
. - P. 11-17,
DOI
10.1080/00150193.2021.1888219. - Cited References: 27. - This work was supported by the Russian Foundation for Basic Research Grant No. 20-42-240009 . - ISSN 0015-0193. - ISSN 1563-5112
РУБ
Materials Science, Multidisciplinary + Physics, Condensed Matter
Рубрики:
HOFE3(BO3)4
TEMPERATURE
SPECTRA
GROWTH
Кл.слова (ненормированные):
Borates
--
ab initio calculation
--
electronic bands
--
crystal structure
Аннотация:
NdFe3(BO3)4 and NdGa3(BO3)4 crystals are of great interest due to their physical properties. For example, NdFe3(BO3)4 crystal demonstrates magnetodielectric and magnetopiezoelectric effects, and NdGa3(BO3)4 crystal possesses luminescent and nonlinear optical properties. In this work, the properties of these materials are calculated by the plane-wave pseudo-potential method based on density functional theory. The structures of the crystals are optimized. The electronic structure of NdFe3(BO3)4 and NdGa3(BO3)4 are calculated.
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Держатели документа:
Kirensky Inst Phys FRC KSC SB RAS, Krasnoyarsk, Russia.
Siberian Fed Univ, Krasnoyarsk, Russia.
Доп.точки доступа:
Krylova, S. N.; Крылова, Светлана Николаевна; Gudim, I. A.; Гудим, Ирина Анатольевна; Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vtyurin, A. N.; Втюрин, Александр Николаевич; Krylov, A. S.; Крылов, Александр Сергеевич; Russian Foundation for Basic Research GrantRussian Foundation for Basic Research (RFBR) [20-42-240009]
}
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14.
Features of the
melt–solution synthesis of the TbCr3(BO3)4 single crystals / I. A. Gudim, N. V. Mikhashenok, A. D. Vasiliev [et al.]> // J. Cryst. Growth. - 2024. -
Vol. 637-638
. - Ст. 127716,
DOI
10.1016/j.jcrysgro.2024.127716. - Cited References: 22. - The authors thank A.V. Zamkov for assistance in preparing the samples for the conoscopic study. The characterization and examination of the samples were performed at the Center for Collective Use, Krasnoyarsk Scientific Center, Siberian Branch of the Russian Academy of Sciences. - This study was supported in part by the Russian Science Foundation and the Krasnoyarsk Territorial Foundation for Support of Scientific and R&D Activity, project no. 22-12-20019 . - ISSN 0022-0248. - ISSN 1873-5002
Кл.слова (ненормированные):
Growth from melt-solution
--
Single crystal growth
--
Cromium
borates
--
Rare-earth compounds
--
Oxides
--
Magnetic materials
Аннотация:
The phase formation of terbium chromoborate TbCr3(BO3)4 in the bismuth trimolybdate and lithium tungstate melt–solutions has been studied. The absence of the terbium chromoborate trigonal phase in the bismuth trimolybdate-based system at all component ratios has been shown. The component ratio in the lithium tungstate-based system has been found at which the TbCr3(BO3)4 trigonal crystals are formed at temperatures above 1100 °C; below this temperature, the monoclinic phase dominates. The structural and magnetic properties of the grown crystals have been studied. It has been established that the trigonal and monoclinic TbCr3(BO3)4 crystals synthesized from the lithium tungstate-based solvent exhibit identical magnetic properties. At the same time, a significant difference of the magnetic properties of the single crystals synthesized from the bismuth molybdate melt–solution has been observed. This difference has been attributed to the effect of Bi3+ ions that partially replace Tb3+ ions.
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Держатели документа:
Kirensky Institute of Physics, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036 Russia
Доп.точки доступа:
Gudim, I. A.; Гудим, Ирина Анатольевна; Mikhashenok, N. V.; Михашенок, Наталья Владимировна; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Melnikova, S. V.; Мельникова, Светлана Владимировна; Pavlovskii, M. S.; Павловский, Максим Сергеевич; Skorobogatov, S. A.; Скоробогатов, Станислав Алексеевич; Pankrats, A. I.; Панкрац, Анатолий Иванович
}
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15.
Growth, optical and
electromechanical properties of single-crystalline orthorhombic bismuth triborate / A. S. Aleksandrovsky [et al.]> // J. Cryst. Growth. - 2008. -
Vol. 310
,
Is. 18
. - P. 4027-4030,
DOI
10.1016/j.jcrysgro.2008.06.020. - Cited Reference Count: 19. - Гранты: The work was supported by the Russian Foundation for Basic Research Grant No 07-02-00497, the Grants of the President of the Russian Federation for the support of leading scientific schools (SS-4137.2006.2 and SS-6612.2006.3), the Grant RNR2.1.1.1814 and Interdisciplinary Integration project of SB RAS No 33. - Финансирующая организация: Russian Foundation for Basic Research [07-02-00497]; President of the Russian Federation [SS-4137.2006.2, SS-6612.2006.3]; SB RAS [33]; [RNR2.1.1.1814] . - ISSN 0022-0248
Рубрики:
BORATE BIB3O6
BIBO
GENERATION
Кл.слова (ненормированные):
growth from melt
--
borates
--
dielectric materials
--
nonlinear optical materials
--
A2. Growth from melt
--
B1.
Borates
--
B2. Dielectric materials
--
B2. Nonlinear optical materials
--
A2. Growth from melt
--
B1.
Borates
--
B2. Dielectric materials
--
B2. Nonlinear optical materials
--
Bismuth triborate
--
Electro-mechanical properties
--
Optical-
--
Single-crystalline
--
Bismuth
Аннотация:
Orthorhombic bismuth triborate (delta-BiB3O6) Single crystals were grown via the top-seeded method at atmospheric pressure. delta-BiB3O6 is shown to be a stable polymorph at temperatures close to the melting point while alpha-BiB3O6 is a metastable one. Optical, acoustic and electromechanical properties of delta-BiB3O6 are measured. Possibility of doping delta-BiB3O6 with large amounts of rare earths is demonstrated. (C) 2008 Published by Elsevier B.V.
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eLibrary
Держатели документа:
LV Kirenskii Inst Phys, Coherent Opt Lab, Krasnoyarsk 660036, Russia
Siberian Fed Univ, Krasnoyarsk, Russia
Доп.точки доступа:
Aleksandrovsky, A. S.; Александровский, Александр Сергеевич; Vasiliev, A. D.; Васильев, Александр Дмитриевич; Zaitsev, A. I.; Зайцев, Александр Иванович; Zamkov, A. V.; Замков, Анатолий Васильевич
}
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16.
Investigation of the
iron
borates
DyFe3(BO3)(4) and HoFe3(BO3)(4) by the method of Er3+ spectroscopic probe / T. N. Stanislavchuk [et al.]> // Phys. Lett. A. - 2007. -
Vol. 368
,
Is. 5
. - P. 408-411,
DOI
10.1016/j.physleta.2007.04.044. - Cited References: 16 . - ISSN 0375-9601
РУБ
Physics, Multidisciplinary
Рубрики:
GDFE3(BO3)(4)
CRYSTALS
Кл.слова (ненормированные):
rare-earth iron
borates
--
magnetic ordering
--
optical spectroscopy
--
Magnetic ordering
--
Optical spectroscopy
--
Rare-earth iron
borates
Аннотация:
Temperature-dependent high-resolution optical spectra of the Er3+ probe ion in DyFe3(BO3)(4) and HoFe3(BO3)(4) are reported. The data provide the temperature of magnetic ordering and direction of the Fe3+ magnetic moments. Both compounds order magnetically at T-N = 39 +/- 1K. The magnetic structure of DyFe3(BO3)(4) is of the easy-axis type, while that of HoFe3(BO3)(4) is of the easy-plane type. The role of anisotropic interactions between the iron and the rare-earth subsystems is discussed. (c) 2007 Elsevier B.V. All rights reserved.
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Держатели документа:
Russian Acad Sci, Inst Spect, Troitsk 142190, Moscow Region, Russia
LV Kirenskii Inst Phys, RAS, Siberian Branch, Krasnoyarsk 660036, Russia
ИФ СО РАН
Institute of Spectroscopy, Russian Academy of Sciences, 142190 Troitsk, Moscow region, Russian Federation
L.V. Kirensky Institute of Physics, Siberian Branch, RAS, Krasnoyarsk, 660036, Russian Federation
Доп.точки доступа:
Stanislavchuk, T. N.; Chukalina, E. P.; Popova, M. N.; Bezmaternykh, L. N.; Gudim, I. A.; Гудим, Ирина Анатольевна
}
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17.
K2(l-x)Rb2xA12B207, 0x0.75: nonlinear
optical
borates
[Text] / V. G. Grossman, B. G. Bazarov, V. V. Atuchin [et al.]> //
International Conference on Minerals and Materials / International Conference on Minerals and Materials (2011 ; Sep. ; 29-30, ; Ulaanbaatar, Mongolia). - 2011. - P90-92
https://www.sites.google.com/site/mmcem2011/abstracts
Доп.точки доступа:
Grossman, V.G.; Bazarov, B.G.; Atuchin, V.V.; Molokeev, M.S.; Bazarova, J.G.; Gavrilova, T.A.; International Conference on Minerals and Materials(2011 ; Sep. ; 29-30, ; Ulaanbaatar, Mongolia)
}
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18.
Long range magnetic
order in RAl3(BO3)4 (R = Dy, Tb)
borates
at sub-kelvin temperatures / T. Zajarniuk [и др.]> //
27th Int. Conf. on Low Temperature Phys. (LT-27) : book of abstracts. - 2014. - Ст. P93-0136
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Доп.точки доступа:
Zajarniuk, T.; Szewczyk, A.; Gutowska, M. U.; Pashchenko, M. I.; Пащенко М.И.; Bedarev, V. A.; Бедарев В. А.; Gnatchenko, S. L.; Гнатченко С.Л.; Bezmaternykh, L. N.; Безматерных, Леонард Николаевич; Temerov, V. L.; Темеров, Владислав Леонидович; Prokhorov, A. M.; Прохоров А. М.; Chernysh, L. F.; Dyakonov, V. P.; Дьяконов В. П.; International Conference on Low Temperature Physics(27 ; 2014 ; 6-13 Aug. ; Buenos Aires, Argentina)
}
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19.
Magnetic anisotropy of
the VBO3 and CrBO3 transition-metal
borates
/ A. D. Balaev [et al.]> // Phys. Solid State. - 2003. -
Vol. 45
,
Is. 2
. - P. 287-291,
DOI
10.1134/1.1553533. - Cited References: 16 . - ISSN 1063-7834
РУБ
Physics, Condensed Matter
Аннотация:
Temperature and field dependences of the magnetization of VBO3 and CrBO3 single crystals with the magnetic field applied parallel and perpendicular to the (111) basal plane were measured. VBO3 was found to have a considerable uniaxial anisotropy with a field H-a approximate to 6.25 T. CrBO3 was shown to exhibit not only uniaxial but also hexagonal anisotropy. The experimental anisotropy constants were estimated, and their temperature dependences are presented. (C) 2003 MAIK "Nauka / Interperiodica".
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Держатели документа:
Russian Acad Sci, LV Kirensky Phys Inst, Siberian Div, Krasnoyarsk 660036, Russia
Krasnoyarsk State Tech Univ, Krasnoyarsk 660074, Russia
ИФ СО РАН
Kirenskii Inst. of Physics, Siberian Division, Russian Academy of Sciences, Akademgorodok, Krasnoyarsk 660036, Russian Federation
Krasnoyarsk State Tech. University, Krasnoyarsk 660074, Russian Federation
Доп.точки доступа:
Balaev, A. D.; Балаев, Александр Дмитриевич; Ivanova, N. B.; Иванова, Наталья Борисовна; Kazak, N. V.; Казак, Наталья Валерьевна; Ovchinnikov, S. G.; Овчинников, Сергей Геннадьевич; Rudenko, V. V.; Руденко, Валерий Васильевич; Sosnin, V. M.; Соснин, Виктор Михайлович
}
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20.
Magnetic intermediate state
in the iron
borates
TbFe3(BO3)4 and PrFe3(BO3)4 [Text] / V. A. Bedarev, L. N. Bezmaternykh [et al.]> //
International Conference "Functional Materials" (ICFM-09) : book of abstracts : October 5-10, Ukraine, Crimea, Partenit. - 2009. - Ст. ES-4P/14
Доп.точки доступа:
Bedarev, V.A.; Bezmaternykh, L.N.; Gnatchenko, S.L.; Pashchenko, M.I.; Temerov, V.L.; "Functional Materials", International Conference(4 ; 2009 ; OCT ; Partenit, Crimea, Ukraine)
}
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