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Synthesis, structure, and magnetic properties of anion-substituted manganese chalcogenides / S. S. Aplesnin [et al.] // Phys. Solid State. - 2012. - Vol. 54, Is. 7. - P. 1374-1379. - Cited References: 14. - This study was supported by the Russian Foundation for Basic Research (project nos. 12-02-00125_a, 09-02-92001-NNS_a, 11-02-98018 r_sibir'_a, and 12-02-93001 V'et_a), the Belarusian Republican Foundation for Fundamental Research-Russian Foundation for Basic Research (joint project RFBR-BRFFR no. 12-02-90004), the Belarusian Republican Foundation for Fundamental Research (project no. F08R-037), and the Ministry of Education and Science of the Russian Federation within the framework of the Analytical Department Targeted Program "Development of the Scientific Potential of the Higher School" (state contract no. 2.1.1/11763). . - ISSN 1063-7834

РУБ Physics + Condensed Matter
Рубрики:
Solid-Solutions
MnSe

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Публикация на русском языке Синтез, структурные и магнитные свойства анион-замещенных халькогенидов марганца [Текст] / С. С. Аплеснин [и др.] // Физ. тверд. тела : Физико-технический институт им. А.Ф.Иоффе РАН, 2012. - Т. 54 Вып. 7. - С. 1296-1301

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Romanova, O. B.; Романова, Оксана Борисовна; Gorev, M. V.; Горев, Михаил Васильевич; Vasil'ev, A. D.; Demidenko, O. F.; Makovetskii, G. I.; Yanushkevich, K. I.
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Crystal structures of EuLnCuS3 (Ln = Nd and Sm) / A. V. Ruseikina [et al.] // Russ. J. Inorg. Chem. - 2012. - Vol. 57, Is. 1. - P. 79-83, DOI 10.1134/S0036023612010172. - This work was supported by the Federal Target Program "Scientific and Pedagogical Personnel of Innovative Russia" for 2009-2013 (grant nos. 6K/143-09 (P 646) and NK-409/5 (P2263)) and the President of the Russian Federation (Support Program for Leading Scientific Schools of the Russian Federation, grant NSh-4645.2010.2). - The results of this study have been presented at the X International Scientific Conference “Solid-State Chemistry: Nanomaterials, Nanotechnologies” (Stavropol, October 17–22, 2010) and the All-Russia Scientific Conference “Challenges of Modern Chemistry. Theory and Practice” (Ufa, October 21–23, 2010). . - ISSN 0036-0236

РУБ Chemistry, Inorganic & Nuclear
Рубрики:
RARE-EARTH
   MAGNETIC-PROPERTIES
   COPPER SULFIDE
   CHALCOGENIDES
   EUROPIUM
   EU2CUS3
Аннотация: The compound sulfides EuLnCuS3 (Ln = Nd and Sm) were obtained for the first time. Their crystal structures were determined from X-ray powder diffraction data. The crystals of both compounds are orthorhombic (space group Pnma). The compound EuNdCuS3 is isostructural with BaLaCuS3; the unit cell parameters are a = 11.0438(2) Å, b = 4.0660(1) Å, c = 11.4149(4) Å. The compound EuSmCuS3 is isostructural with Eu2CuS3; the unit cell parameters are a = 10.4202(2) Å, b = 3.9701(1) Å, c = 12.8022(2) Å.

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Публикация на русском языке Кристаллическая структура соединений EuLnCuS3 (Ln = Nd, Sm) [Текст] / А. В. Русейкина [и др.] // Журн. неорг. химии : Наука, 2012. - Т. 57 № 1. - С. 86-90

Держатели документа:
GOU VPO Tyumen State Univ, Tyumen, Russia
Russian Acad Sci, Siberian Branch, Inst Chem & Chem Technol, Krasnoyarsk, Russia
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk, Russia

Доп.точки доступа:
Ruseikina, A. V.; Solovyov, L. A.; Соловьев, Леонид Александрович; Molokeev, M. S.; Молокеев, Максим Сергеевич; Andreev, O. V.
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Peculiarities of transport, resonance and optical properties of the anion-substituted chalcogenides manganese / O. B. Romanova [et al.] // Moscow Int. Symp. on Magnet. (MISM-2014) : Book of abstracts. - 2014. - Ст. 1PO-K-9. - P. 542 . - ISBN 978-5-91978-025-0

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Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Makovetskii, G. I.; Demidenko, O. F.; Yanushkevich, K. I.; Moscow International Symposium on Magnetism(6 ; 2014 ; 29 June-3 July ; Moscow); Московский государственный университет им. М.В. Ломоносова
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Aplesnin, S. S.
Magnetoresistance effect in anion-substituted manganese chalcogenides / S. S. Aplesnin, O. B. Romanova, K. I. Yanushkevich // Phys. Status Solidi B. - 2015. - Vol. 252, Is. 8. - P. 1792-1798, DOI 10.1002/pssb.201451607. - Cited References: 35. - This study was supported by the official assignment no. 114090470016. . - ISSN 0370. - ISSN 1521-3951. -

РУБ Physics, Condensed Matter
Рубрики:
MAGNETIC-PROPERTIES
   ELECTRONIC-STRUCTURE
   SOLID-SOLUTIONS
   MnTe
   MnSe
   CONDUCTIVITY
   TRANSITION
Кл.слова (ненормированные):
Electron tunneling -- Magnetic properties -- Magnetoresistance -- Semiconductors
Аннотация: The electric and magnetic properties of anion-substituted antiferromagnetic MnSe1-xTex (0.1≤x≤0.4) semiconductors in the 77-700K temperature range and magnetic fields under 1T are studied. In the MnSe1-xTex solid solutions, negative magnetoresistance in the vicinity of the Néel temperature for x=0.1 and for composition with x=0.2 in the paramagnetic range below 270K is revealed. A dependence of the magnetic susceptibility versus the prehistory of the samples is found. The model of localized spin-polarized electrons with the localization radius depending on the magnetic field is proposed for x=0.1. In the paramagnetic range, the negative magnetoresistance and the behavior of magnetic moment are a result of orbital glass formation.

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Держатели документа:
Kirensky Institute of Physics SB RAS, Akademgorodok 50, Krasnoyarsk, Russian Federation
Siberian State Aerospace University M F Reshetnev, Krasnoyarsky Rabochy Av. 31, Krasnoyarsk, Russian Federation
Scientific-Practical Materials Research Center NAS, P. Brovski Str.19, Minsk, Belarus

Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Янушкевич, Казимир Иосифович; Yanushkevich K. I.; Аплеснин, Сергей Степанович
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    Peculiarities of transport, resonance and optical properties of the anion-substituted manganese chalcogenides / O. B. Romanova [et al.] // Solid State Phenom. : Selected, peer reviewed papers. - 2015. - Vol. 233-234: Achievements in Magnetism. - P. 447-450, DOI 10.4028/www.scientific.net/SSP.233-234.447 . - ISSN 1662-9779. - ISSN 978-3-038
Рубрики:
Achievements in magnetism
   Spintronics and magnetotransport
Кл.слова (ненормированные):
chalcogenides -- magnetoresistance effect -- optical absorption spectra -- resonance properties
Аннотация: Present paper reports of resonance properties of Mn2GeO4 single crystals. The data confirm the formation of a complex spiral magnetic structure at low temperatures. It is shown that the spin reorientation may be associated with the competition anisotropic contributions of the various subsystems of the manganese ions.

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Доп.точки доступа:
Perov, N. \ed.\; Semisalova, A. \ed.\; Romanova, O. B.; Романова, Оксана Борисовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Vorotynov, A. M.; Воротынов, Александр Михайлович; Makovetskii, G. I.; Demidenko, O. F.; Yanushkevich, K. I.; Moscow International Symposium on Magnetism(6 ; 2014 ; June-July ; Moscow)
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Magnetic order in FeCr2S4-type chalcogenide spinels / F. J. Berry [et al.] // J. Phys.: Condens. Matter. - 2007. - Vol. 19, Is. 26. - Ст. 266204, DOI 10.1088/0953-8984/19/26/266204. - Cited References: 15 . - ISSN 0953-8984

РУБ Physics, Condensed Matter
Рубрики:
COLOSSAL-MAGNETORESISTANCE
TRANSITION
Кл.слова (ненормированные):
Doping (additives) -- Iron compounds -- Magnetization -- Magnetoresistance -- Mossbauer spectroscopy -- X ray absorption fine structure spectroscopy -- Chalcogenide spinels -- Low temperature magnetic behaviour -- Magnetic ordering temperature -- Thiospinels -- Chalcogenides
Аннотация: The thiospinels of composition FeCr2S4 and Fe1+xCr2-2xSnxS4 with 0 < x < 0.1 have been examined by means of extended x- ray absorption fine structure, Mossbauer spectroscopy and magnetoresistance techniques. The structural characterization shows that tin enters the spinel- related lattice as Sn4+ and occupies the octahedral B site. Appreciable magnetoresistance is observed in the temperature range 160 - 185 K which includes the magnetic ordering temperature. The effect of slight non- stoichiometry in FeCr2S4 and of tin doping is observed in the M r ossbauer spectra which show the Fe2+ ions to occupy the tetrahedral A sites. The M r ossbauer spectra recorded around the magnetic ordering temperature are sensitive to small ( 0.03 T) applied magnetic fields. The influence of tin on the low temperature magnetic behaviour is associated with the distribution of Cr3+, Sn4+ and Fe3+ ions around tetrahedral Fe2+ sites and vacancies in the anionic sublattice. An interpretation of the colossal magnetoresistance phenomena below TN is suggested.

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Держатели документа:
Open Univ, Dept Chem, Milton Keynes MK7 6AA, Bucks, England
Russian Acad Sci, AV Shubnikov Crystallog Inst, Moscow 119333, Russia
Univ Liverpool, Dept Phys, Liverpool L69 3BX, Merseyside, England
Russian Acad Sci, Inst Inorgan & Gen Chem, Moscow 119907, Russia
Russian Acad Sci, Siberian Branch, LV Kirensky Phys Inst, Krasnoyarsk 660036, Russia
ИФ СО РАН
Department of Chemistry, Open University, Walton Hall, Milton Keynes MK7 6AA, United Kingdom
A V Shubnikov Institute of Crystallography, Russian Academy of Sciences, Leninsky avenue 59, Moscow 119333, Russian Federation
Department of Physics, University of Liverpool, Liverpool L69 3BX, United Kingdom
Institute of Inorganic and General Chemistry, Russian Academy of Sciences, Leninsky avenue 31, Moscow 119907, Russian Federation
L V Kirensky Institute of Physics, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk 660036, Russian Federation

Доп.точки доступа:
Berry, F. J.; Dmitrieva, T. V.; Ovanesyan, N. S.; Lyubutin, I. S.; Thomas, M. F.; Sarkisyan, V. A.; Ren, X.; Aminov, T. G.; Shabunina, G. G.; Rudenko, V.; Vorotynov, A. M.; Воротынов, Александр Михайлович; Dubinskaya, Y. L.
}
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The influence of magnetic field on the frequency dependence of the impedance in the anion–substituted manganese chalcogenides / O. B. Romanova [et al.] // VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016) : abstracts / ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk : KIP RAS SB, 2016. - Ст. P4.4. - P. 232. - This work was financially supported by RFFI №15–42–04099 and assignment №114090470016. . - ISBN 978-5-904603-06-9
Кл.слова (ненормированные):
chalcogenides -- impedance -- relaxation -- magnetoresistance

Держатели документа:
Scientific-Practical Materials Research Center NAS, Minsk, Belarus

Доп.точки доступа:
Romanova, O. B.; Романова, Оксана Борисовна; Aplesnin, S. S.; Аплеснин, Сергей Степанович; Korolev, V. V.; Королёв В. В.; Kretinin, V. V.; Кретинин В. В.; Yanushkevich, K. I.; Euro-Asian Symposium "Trends in MAGnetism"(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); "Trends in MAGnetism", Euro-Asian Symposium(6 ; 2016 ; Aug. ; 15-19 ; Krasnoyarsk); Институт физики им. Л.В. Киренского Сибирского отделения РАН

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Magnetoimpedance and magnetocapacitance of anion-substituted manganese chalcogenides / S. S. Aplesnin [et al.] // J. Appl. Phys. - 2017. - Vol. 121, Is. 7. - Ст. 075701, DOI 10.1063/1.4976097. - Cited References: 26. - The reported study was funded by the Russian Foundation for Basic Research, Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project No. 17-42-240079 r_sibir_a. This study was supported by the Russian Foundation for Basic Research project No. 16-52-00045 Bel_a and government work No. 114090470016. . - ISSN 0021-8979
Кл.слова (ненормированные):
Activation energy -- Chalcogenides -- Inorganic compounds -- Manganese -- Neel temperature -- Carrier relaxation time -- Impedance spectroscopy -- Low and high frequencies -- Magnetically ordered state -- Magneto-resistive effect -- Magnetocapacitance -- Pyroelectric current -- Temperature dependence -- Temperature distribution
Аннотация: The magnetoresistive effect in MnSe1−XTeX manganese chalcogenides with a substitute concentration of X = 0.1 is studied by impedance spectroscopy. The magnetoimpedance above the Neel temperature is found. The obtained experimental data are explained in the framework of the model of existence of magnetic nanoareas of two types. Two activation energies in the low- and high-frequency regions are determined from the frequency and temperature dependences of the permittivity described in the Debye model. The extrema found in the temperature dependence of the pyroelectric current are consistent with the maxima in the temperature dependence of magnetization. Temperature dependence of the carrier relaxation time is established. The magnetocapacitance of the MnSe1−XTeX solid solutions is found. The change in the carrier type above the Neel temperature and the temperature of the transition to the magnetically ordered state in the MnTe nanoarea is established.

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Держатели документа:
Kirensky Institute of Physics, Federal Research Center KSC SB RAS, Krasnoyarsk, Russian Federation
Siberian State Aerospace University, M. F. Reshetnev Corporation, Krasnoyarsk, Russian Federation
Scientific-Practical Materials Research Center NAS, Minsk, Belarus

Доп.точки доступа:
Aplesnin, S. S.; Аплеснин, Сергей Степанович; Romanova, O. B.; Романова, Оксана Борисовна; Korolev, V. V.; Sitnikov, M. N.; Yanushkevich, K. I.
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Korshunov, M. M.
Impurities in multiband superconductors / M. M. Korshunov, Y. N. Togushova, O. V. Dolgov // Physics-Uspekhi. - 2016. - Vol. 59, Is. 12. - P. 1211-1240, DOI 10.3367/UFNe.2016.07.037863. - Cited References: 200. - We acknowledge partial support by RFBR (grant 16-02-00098) and Government Support of the Leading Scientific Schools of the Russian Federation (NSh-7559.2016.2). . - ISSN 1063-7869
Кл.слова (ненормированные):
Unconventional superconductors -- Iron pnictides -- Iron chalcogenides -- Impurity scattering
Аннотация: Disorder impurities and defects violating the ideal long-range order is always present in solids. It can result in interesting and sometimes unexpected effects in multiband superconductors, especially if the superconductivity is uncon-ventional, thus having symmetry other than the usual s-wave. This paper uses the examples of iron-based pnictides and chal-cogenides to examine how both nonmagnetic and magnetic impurities affect superconducting states with s± and s++ order parameters. We show that disorder causes the transition between s± and s++ states and examine what observable effects this transition can produce. © 2016 Uspekhi Fizicheskikh Nauk, Russian Academy of Sciences.

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Публикация на русском языке Коршунов, Максим Михайлович. Примеси в многозонных сверхпроводниках [Текст] / М. М. Коршунов, Ю. Н. Тогушова, В. Г. Долгов // Успехи физ. наук : ред. журн. "Успехи физ. наук", 2016. - Т. 186 № 12. - С. 1315-1347

Держатели документа:
Kirensky Institute of Physics, Federal Research Center, Krasnoyarsk Science Center SB RAS, ul. Akademgorodok 50, str. 38, Krasnoyarsk, Russian Federation
Siberian Federal University, Svobodnyi prosp. 79, Krasnoyarsk, Russian Federation
Max-Planck-Institut fur Festkorperforschung, Stuttgart, Germany
Lebedev Physical Institute, Russian Academy of Sciences, Leninskii prosp. 53, Moscow, Russian Federation

Доп.точки доступа:
Togushova, Yu.N.; Тогушова, Ю. Н.; Dolgov, O. V.; Коршунов, Максим Михайлович
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10.

    Details of the disorder-induced transition between s± and s++ states in the two-band model for Fe-based superconductors / V. A. Shestakov [et al.] // Supercond. Sci. Technol. - 2018. - Vol. 31, Is. 3. - Ст. 034001, DOI 10.1088/1361-6668/aaa501. - Cited References:62. - We are grateful to P D Grigor'ev and M V Sadovskii for useful discussions. This work was supported in part by the Russian Foundation for Basic Research (grant 16-02-00098) and Government Support of the Leading Scientific Schools of the Russian Federation (NSh-7559.2016.2). MMK and VAS acknowledge the support of the 'BASIS' Foundation for Development of Theoretical Physics and Mathematics. . - ISSN 0953-2048. - ISSN 1361-6668
   Перевод заглавия: Детали вызванного беспорядком перехода между s± и s++ состояниями в двузонной модели сверхпроводников на основе железа

РУБ Physics, Applied + Physics, Condensed Matter
Рубрики:
IRON-BASED SUPERCONDUCTORS
HIGH-TEMPERATURE SUPERCONDUCTIVITY
PAIRING
Кл.слова (ненормированные):
unconventional superconductors -- iron pnictides -- iron chalcogenides -- impurity scattering
Аннотация: IIrradiation of superconductors with different particles is one of many ways to investigate the effects of disorder. Here we study the disorder-induced transition between s ± and s ++ states in the two-band model for Fe-based superconductors with nonmagnetic impurities. Specifically, we investigate the important question of whether the superconducting gaps during the transition change smoothly or abruptly. We show that the behavior can be of either type and is controlled by the ratio of intraband to interband impurity scattering potentials, and by a parameter σ, that represents scattering strength and ranges from zero (Born approximation) to one (unitary limit). For the pure interband scattering potential and the scattering strength σ ≲ 0.11, the s ± → s ++ transition is accompanied by steep changes in the gaps, while for larger values of σ, the gaps change smoothly. The behavior of the gaps is characterized by steep changes at low temperatures, T˂ 0.1Tc0 with Tc0 being the critical temperature in the clean limit, otherwise it changes gradually. The critical temperature Tc is always a smooth function of the scattering rate in spite of the steep changes in the behavior of the gaps.

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Держатели документа:
RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Krasnoyarsk 660036, Russia.
Siberian Fed Univ, Krasnoyarsk 660041, Russia.
Leibniz Inst Festkorper & Werkstoffforsch, D-01069 Dresden, Germany.
Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany.
RAS, PN Lebedev Phys Inst, Moscow 119991, Russia.

Доп.точки доступа:
Shestakov, V. A.; Шестаков, Вадим Андреевич; Korshunov, M. M.; Коршунов, Максим Михайлович; Togushova, Yu.N.; Тогушова Ю. Н.; Efremov, D. V.; Dolgov, O. V.; Russian Foundation for Basic Research [16-02-00098]; Government Support of the Leading Scientific Schools of the Russian Federation [NSh-7559.2016.2]; 'BASIS' Foundation for Development of Theoretical Physics and Mathematics
}
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