Библиотека института физики им. Л.В. Киренского СО РАН

Главная

Базы данных

Труды сотрудников ИФ СО РАН - результаты поиска

Вид поиска

Каталог книг и брошюр библиотеки ИФ СО РАН

Каталог журналов библиотеки ИФ СО РАН

Труды сотрудников ИФ СО РАН

Область поиска

в найденном

Формат представления найденных документов:
полный	информационный	краткий

Отсортировать найденные документы по:
автору	заглавию	году издания	типу документа

Поисковый запрос: (<.>S=Iron<.>)

Общее количество найденных документов : 30
Показаны документы с 1 по 10

1-10 11-20 21-30

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Iskhakov R. S., Komogortsev S. V., Balaev A. D., Chekanova L. A.
Заглавие : Dimensionality of a system of exchange-coupled grains and magnetic properties of nanocrystalline and amorphous ferromagnets
Место публикации : JETP Letters. - 2000. - Vol. 72, Is. 6. - P.304-307. - ISSN 0021-3640, DOI 10.1134/1.1328443
Примечания : Cited References: 15
Предметные рубрики: RANDOM ANISOTROPY
FILMS
IRON
SIZE
Аннотация: Characteristics of random magnetic anisotropy in ferromagnetic films of amorphous Co90P10 and nanocrystalline Ni75C25 , Fe80B4C16 , and Co80C20 alloys and also in multilayer films [Co93P7(x)/Pd(14 Angstrom)](20) and [Co90P10(x)/Pd(14 Angstrom)](20) obtained by various technological procedures were studied experimentally. It was found that the spatial dimensionality (d) of the system of ferromagnetically coupled grains (2R(c)) in the materials under study determined the exponent in the power dependence of the approach of magnetization to saturation in the region of fields H 2A / MRc2. The dependence DeltaM similar to H-1/2 was observed for nanocrystalline and amorphous films with a three-dimensional grain arrangement. The approach to saturation in multilayer films with a two-dimensional grain arrangement in an individual magnetic layer follows the law DeltaM similar to H-1. The main micromagnetic characteristics of random anisotropy, such as the ferromagnetic correlation radius R-f and the average anisotropy [K] of a ferromagnetic domain with a size of 2R(f) , were determined for multilayer Co/Pd films. Correlation was found between the coercive field and these characteristics of random anisotropy. (C) 2000 MAIK "Nauka / Interperiodica".
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bayukov O. A., Bykova L. E., Zhigalov V. S., Bondarenko G. N.
Заглавие : Solid-state synthesis in Ni/Fe/MgO(001) epitaxial thin films
Место публикации :. - Vol. 80, Is. 7. - P.487-490. - ISSN 0021-3640, DOI 10.1134/1.1839296
Примечания : Cited References: 34
Предметные рубрики: HIGH-TEMPERATURE SYNTHESIS
BINARY DIFFUSION COUPLES
MARTENSITIC TRANSFORMATIONS
PHASE-FORMATION
MAGNETIC-PROPERTIES
SPIN DYNAMICS
INVAR-ALLOYS
IRON
TRANSITION
NUCLEATION
Аннотация: Solid-state synthesis in Ni/Fe/MgO(001) bilayer epitaxial thin films has been studied experimentally. The phase sequence Fe/Ni -- (similar to350degreesC)Ni(3)Fe -- (similar to400degreesC)NiFe -- (similar to550degreesC)gamma(par) is formed as the annealing temperature increases. The crystal structure in the invar region consists of epitaxially intergrown single-crystal blocks consisting of the paramagnetic gamma(par) and ferromagnetic NiFe phases, which satisfy the orientation relationship [100](001)NiFe parallel to [100](001)gamma(par). It has been shown that the nucleation temperatures of the Ni(3)Fe, NiFe, and gamma(par) phases coincide with the temperatures of solid-state transformations in the Ni-Fe system. (C) 2004 MAIK "Nauka/Interperiodica".
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Frolov G. I., Bachina O. I., Zav'yalova M. M., Ravochkin S. I.
Заглавие : Magnetic properties of nanoparticles of 3d metals
Коллективы :
Место публикации : Tech. Phys.: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2008. - Vol. 53, Is. 8. - P1059-1064. - ISSN 1063-7842, DOI 10.1134/S1063784208080136
Примечания : Cited References: 19. - This study was supported by the targeted program "Development of the Research Potential of Higher Education Institutions," grant no. RNP.2.1.1.7376.
Предметные рубрики: CLUSTERS
IRON
PARTICLES
Аннотация: The influence of size effects on the coercive force, magnetization, and Curie temperature in nanoparticles of 3d metals is considered. It is shown that experimental results obtained during the last two decades provide new information on peculiar magnetic properties of these particles.
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Popova E. A., Tristan N., Vasiliev A. N., Temerov V. L., Bezmaternykh L. N., Leps N., Buechner B., Klingeler R.
Заглавие : Magnetization and specific heat of DyFe3(BO3)(4) single crystal
Разночтения заглавия :авие SCOPUS: Magnetization and specific heat of DyFe 3(BO 3) 4 single crystal
Место публикации : Eur. Phys. J. B: SPRINGER, 2008. - Vol. 62, Is. 2. - P123-128. - ISSN 1434-6028, DOI 10.1140/epjb/e2008-00146-5
Примечания : Cited References: 18
Предметные рубрики: IRON
NDFE3(BO3)(4)
GDFE3(BO3)(4)
Ключевые слова (''Своб.индексиров.''): antiferromagnetic orders--iron subsystems--antiferromagnetic materials--dysprosium compounds--magnetic field effects--magnetization--specific heat--thermodynamics--single crystals
Аннотация: We present thermodynamic and magnetic studies of single crystalline DyFe3(BO3)(4). The data indicate an easy axis antiferromagnetic order below T-N similar to 38 K which we attribute to the Fe subsystem. The Dy subsystem remains paramagnetic down to the lowest investigated temperatures of 2 K, but it is polarized by the Fe spins due to a f-d interaction. External magnetic field leads to a spin-flop transition in the iron subsystem as well as to superposed magnetization in the Dy subsystem. The repopulation of two low-lying Kramers doublets in Dy3+ ions results in well defined Schottky anomalies in specific heat and magnetization.
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Ding Y., Haskel D., Ovchinnikov S. G., Tseng Y. C., Orlov Y. S., Lang J. C., Mao H. K.
Заглавие : Novel pressure-induced magnetic transition in magnetite (Fe(3)O(4))
Разночтения заглавия :авие SCOPUS: Novel pressure-induced magnetic transition in magnetite (Fe3O4)
Место публикации : Phys. Rev. Lett.: AMER PHYSICAL SOC, 2008. - Vol. 100, Is. 4. - Ст.45508. - ISSN 0031-9007, DOI 10.1103/PhysRevLett.100.045508
Примечания : Cited References: 39
Предметные рубрики: MULTIPLE-SCATTERING THEORY
X-RAY DICHROISM
LOWER MANTLE
VERWEY TRANSITION
K-EDGE
CIRCULAR-DICHROISM
SPIN TRANSITION
BAND-STRUCTURE
IRON
FE
Ключевые слова (''Своб.индексиров.''): emission spectroscopy--magnetoelectronics--pressure effects--synchrotron radiation--diamond anvil cell--magnetic transition--x-ray magnetic circular dichroism--magnetite
Аннотация: Fe K-edge x-ray magnetic circular dichroism of magnetite (Fe(3)O(4)) powders was measured with synchrotron radiation under variable pressure and temperature conditions in diamond anvil cell. The magnetic dichroism was observed to decrease discontinuously by similar to 50% between 12 and 16 GPa, independent of temperature. The magnetic transition is attributed to a high-spin to intermediate-spin transition of Fe(2+) ions in the octahedral sites and could account for previously observed structural and electrical anomalies in magnetite at this pressure range. The interpretation of x-ray magnetic circular dichroism data is supported by x-ray emission spectroscopy and theoretical cluster calculations.
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Raikher Y. L., Stepanov V. I., Stolyar S. V., Ladygina V. P., Balaev D. A., Ishchenko L. A., Balasoiu M.
Заглавие : Magnetic properties of biomineral particles produced by bacteria Klebsiella oxytoca
Коллективы :
Место публикации : Phys. Solid State: MAIK NAUKA/INTERPERIODICA/SPRINGER, 2010. - Vol. 52, Is. 2. - P298-305. - ISSN 1063-7834, DOI 10.1134/S1063783410020125
Примечания : Cited References: 29. - This study was supported by the Russian Foundation for Basic Research (project nos. 07-02-96026, 07- 02-96017, and 08-02-00802) and performed within the framework of the Federal Target Program "Research and Research-Pedagogical Personnel of Innovation Russia for 2009-2013."
Предметные рубрики: FERRITIN
NANOPARTICLES
IRON
SUSCEPTIBILITY
FERRIHYDRITE
BEHAVIOR
FINS
Аннотация: Ferrihydrite nanoparticles (2-5 nm in size) produced by bacteria Klebsiella oxytoca in the course of biomineralization of iron salt solutions from a natural medium exhibit unique magnetic properties: they are characterized by both the antiferromagnetic order inherent in a bulk ferrihydrite and the spontaneous magnetic moment due to the decompensation of spins in sublattices of a nanoparticle. The magnetic susceptibility enhanced by the superantiferromagnetism effect and the magnetic moment independent of the magnetic field provide the possibility of magnetically controlling these natural objects. This has opened up the possibilities for their use in nanomedicine and bioengineering. The results obtained from measurements of the magnetic properties of the ferrihydrite produced by Klebsiella oxytoca in its two main crystalline modifications are reported, and the data obtained are analyzed theoretically. This has made it possible to determine numerical values of the magnetic parameters of real biomineral nanoparticles.
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Adem U., Wang L., Fausti D., Schottenhamel W., van Loosdrecht PHM, Vasiliev A., Bezmaternykh L. N., Buchner B., Hess C., Klingeler R.
Заглавие : Magnetodielectric and magnetoelastic coupling in TbFe3(BO3)(4)
Коллективы :
Разночтения заглавия :авие SCOPUS: Magnetodielectric and magnetoelastic coupling in TbFe3(BO 3)4
Место публикации : Phys. Rev. B: AMER PHYSICAL SOC, 2010. - Vol. 82, Is. 6. - Ст.64406. - ISSN 1098-0121, DOI 10.1103/PhysRevB.82.064406
Примечания : Cited References: 23. - We thank K. L. and S. G. for technical support. Work was supported by the DFG through Grants No. HE 3439/6 and No. 486 RUS 113/982/0-1.
Предметные рубрики: DIELECTRIC-CONSTANTS
IRON
GDFE3(BO3)(4)
MULTIFERROICS
TEMPERATURE
Аннотация: We have studied the magnetodielectric and magnetoelastic coupling in TbFe3(BO3)(4) single crystals by means of capacitance, magnetostriction, and Raman spectroscopy measurements. The data reveal strong magnetic field effects on the dielectric constant and on the macroscopic sample length which are associated to long-range magnetic ordering and a field-driven metamagnetic transition. We discuss the coupling of the dielectric, structural, and magnetic order parameters and attribute the origin of the magnetodielectric coupling to phonon mode shifts according to the Lyddane-Sachs-Teller relation.
WOS,
Scopus,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Shukla D. K., Francoual S., Skaugen A., von Zimmermann M., Walker H. C., Bezmaternykh L. N., Gudim, I. A., Temerov V. L., Strempfer J.
Заглавие : Ho and Fe magnetic ordering in multiferroic HoFe3(BO3)4
Место публикации : Phys. Rev. B: American Chemical Society, 2012. - Vol. 86, Is. 22. - Ст.224421. - ISSN 1098-0121, DOI 10.1103/PhysRevB.86.224421
Примечания : Cited References: 32
Предметные рубрики: X-RAY SCATTERING
POLARIZATION DEPENDENCE
IRON
Аннотация: Resonant and nonresonant x-ray scattering studies on HoFe3(BO3)4 reveal competing magnetic ordering of Ho and Fe moments. Temperature and x-ray polarization dependent measurements employed at the Ho L3 edge directly reveal a spiral spin order of the induced Ho moments in the ab plane propagating along the c axis, a screw-type magnetic structure. At about 22.5 K the Fe spins are observed to rotate within the basal plane inducing spontaneous electric polarization, P. Components of P in the basal plane and along the c axis can be scaled with the separated magnetic x-ray scattering intensities of the Fe and Ho magnetic sublattices, respectively.
Смотреть статью,
Scopus,
WoS,
Читать в сети ИФ
Найти похожие

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Maiti S., Korshunov M. M., Chubukov A.V.
Заглавие : Gap symmetry in KFe2As2 and the cos 4θ gap component in LiFeAs
Место публикации : Phys. Rev. B: American Physical Society, 2012. - Vol. 85, Is. 1. - Ст.14511. - ISSN 1098-0121, DOI 10.1103/PhysRevB.85.014511
Примечания : Cited References: 49. - We are thankful to S. Borisenko, S. Davis, R. Fernandes, P. Hirschfeld, I. Eremin, D. Evtushinsky, A. Kordyuk, K. Kuroki, Y. Matsuda, A. Rost, M. Vavilov, and V. Zabolotnyy for useful discussions. This work was supported by NSF-DMR-0906953 (SM and AVC) and by the Humboldt Foundation (AVC). MMK is grateful for support from RFBR (Grant No. 09-02-00127), the Presidium of RAS program N5.7, the FCP Scientific and Research and Educational Personnel of Innovative Russia for 2009-2013 (GK P891 and GK16.740.12.0731), and the President of Russia (Grant No. MK-1683.2010.2).
Предметные рубрики: SUPERCONDUCTING GAPS
IRON
Аннотация: We revisit the issue of the gap symmetry in KFe2As2, which is an Fe pnictide superconductor with only hole pockets. Previous theoretical studies mostly argued for a d−wave gap in KFe2As2 since transport and thermodynamic measurements point to the presence of the gap nodes. However, a d-wave gap is inconsistent with recent laser-based angle-resolved photoemission measurements. We propose a scenario for a nodal s−wave superconductivity induced by a nonmagnetic intraband and interband interactions between fermions near hole pockets. The superconducting gap changes sign between the hole pockets and has cos4θ angular dependence and accidental nodes on one or several hole pockets. We argue that strong angle dependence is the consequence of near-degeneracy between interpocket and intrapocket interaction on the hole pockets. We also analyze the cos4θ angular dependence of the gap in other Fe pnictides and compare theoretical results with the photoemission experiments of LiFeAs.
Смотреть статью,
Scopus,
WoS,
Читать в сети ИФ
Найти похожие

10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Volkov N. V., Tarasov A. S., Eremin E. V., Eremin A. V., Varnakov S. N., Ovchinnikov S. G.
Заглавие : Frequency-dependent magnetotransport phenomena in a hybrid Fe/SiO2/p-Si structure
Место публикации : J. Appl. Phys.: American Institute of Physics, 2012. - Vol. 112, Is. 12. - Ст.123906. - ISSN 0021-8979, DOI 10.1063/1.4769788
Примечания : Cited References: 31. - This study was supported by the Russian Foundation for Basic Research, Project No. 11-02-00367-a; the Presidium of the Russian Academy of Sciences, program Quantum Mesoscopic and Disordered Structures, Project No. 20.8; the Division of Physical Sciences of the Russian Academy of Sciences, program Spin Phenomena in Solids Nanostructures and Spintronics, Project No. II.4.3; the Siberian Branch of the Russian Academy of Sciences, Integration Projects Nos. 85 and 102, and the Federal target program Scientific and Pedagogical Personnel of Innovative Russia (State Contract No. NK-556P_15).
Предметные рубрики: SILICON
IRON
SPINTRONICS
PAIRS
Аннотация: We report the large magnetoimpedance effect in a hybrid Fe/SiO2/p-Si structure with the Schottky barrier. The pronounced effect of magnetic field on the real and imaginary parts of the impedance has been found at temperatures 25-100K in two relatively narrow frequency ranges around 1 kHz and 100MHz. The observed frequency-dependent magnetotransport effect is related to the presence of localized "magnetic" states near the SiO2/p-Si interface. In these states, two different recharging processes with different relaxation times are implemented. One process is capture-emission of carriers that involves the interface levels and the valence band; the other is the electron tunneling between the ferromagnetic electrode and the interface states through SiO2 potential barrier. In the first case, the applied magnetic field shifts energy levels of the surface states relative to the valence band, which changes recharging characteristic times. In the second case, the magnetic field governs the spin-dependent tunneling of carriers through the potential barrier. The "magnetic" interface states originate, most likely, from the formation of the centers that contain Fe ions, which can easily diffuse through the SiO2 layer. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4769788]
Смотреть статью,
Scopus,
WoS,
Читать в сети ИФ
Найти похожие