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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Svalov A. V., Gorkovenko A. N., Larranaga A., Volochaev M. N., Kurlyandskaya G. V.
Заглавие : Structural and magnetic properties of FeNi films and FeNi-based trilayers with out-of-plane magnetization component
Место публикации : Sensors. - 2022. - Vol. 22, Is. 21. - Ст.8357. - ISSN 14248220 (ISSN), DOI 10.3390/s22218357
Примечания : Cited References: 50. - This research was funded by the Russian Science Foundation (RSF), project no. 22-29-00980, https://rscf.ru/en/project/22-29-00980/ and in part by the Research Groups of the UPV-EHU
Аннотация: FeNi films of different thickness and FeNi/(Fe, Co)/FeNi trilayers were prepared by magnetron sputtering deposition onto glass substrates. The permalloy films had a columnar microstructure. The detailed analysis of the magnetic properties based on the magnetic and magneto-optical measurements showed that at thicknesses exceeding a certain critical thickness, hysteresis loops acquire a specific shape and the coercive force of the films increase sharply. The possibility of the estimation of the perpendicular magnetic anisotropy constant using the Murayama equation for the thickness dependence of saturation field was demonstrated. The results of studies of the structural and magnetic properties of FeNi films laminated by Fe and Co spacers with different thickness are presented.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bykova L. E., Matsynin A. A., Volochaev M. N., Zhigalov V. S., Tambasov I. A., Mikhlin Y. L., Velikanov D. A., Bondarenko G. N.
Заглавие : Solid state synthesis of Mn5Ge3 in Ge/Ag/Mn trilayers: Structural and magnetic studies
Место публикации : J. Solid State Chem. - 2017. - Vol. 246. - P.379-387. - ISSN 00224596 (ISSN), DOI 10.1016/j.jssc.2016.12.010
Примечания : Cited References: 64. - This study was supported by the Russian Foundation for Basic Research (RFBR) (Grants # 15-02-00948-a, # 16-03-00069-a), by the Council for Grants of the President of the Russian Federation (SP-1373.2016.3), and by the program of Foundation for Promotion of Small Enterprises in Science and Technology (“UMNIK” program) # 6650GU/2015. The reported study was funded by RFBR and Government of Krasnoyarsk Territory, Krasnoyarsk Region Science and Technology Support Fund to the research project #, 16-42-243006. The XPS and TEM studies were carried out using the facilities of the Performance Service at Krasnoyarsk Scientific Center.
Ключевые слова (''Своб.индексиров.''): long-range atomic transfer--mn-ge system--thin-film solid-state reaction--diffusion barrier--dominant diffusing species--first phase--mn5ge3 alloy
Аннотация: The thin-film solid-state reaction between elemental Ge and Mn across chemically inert Ag layers with thicknesses of (0, 0.3, 1 and 2.2 µm) in Ge/Ag/Mn trilayers was studied for the first time. The initial samples were annealed at temperatures between 50 and 500 °C at 50 °C intervals for 1 h. The initiation temperature of the reaction for Ge/Mn (without a Ag barrier layer) was ~ 120 °C and increased slightly up to ~ 250 °C when the Ag barrier layer thickness increased up to 2.2 µm. In spite of the Ag layer, only the ferromagnetic Mn5Ge3 compound and the Nowotny phase were observed in the initial stage of the reaction after annealing at 500 °C. The cross-sectional studies show that during Mn5Ge3 formation the Ge is the sole diffusing species. The magnetic and cross-sectional transmission electron microscopy (TEM) studies show an almost complete transfer of Ge atoms from the Ge film, via a 2.2 µm Ag barrier layer, into the Mn layer. We attribute the driving force of the long-range transfer to the long-range chemical interactions between reacting Mn and Ge atoms. © 2016 Elsevier Inc.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kosyrev N. N., Yakovchuk V. Yu., Patrin G. S., Komarov V. A., Volchenko E. N., Tarasov I. A.
Заглавие : Optical and magnetic properties of the DyxCo1-x/Bi/Py trilayers
Коллективы : Russian Foundation for Basic ResearchRussian Foundation for Basic Research (RFBR) [18-02-00161-a]
Место публикации : Tech. Phys. Lett. - 2021. - Vol. 47, Is. 2. - P.107-110. - ISSN 1063-7850, DOI 10.1134/S1063785021020097. - ISSN 1090-6533(eISSN)
Примечания : Cited References: 14. - This study was supported by the Russian Foundation for Basic Research, project no. 18-02-00161-a
Аннотация: We report on the results of investigations of the optical and magnetooptical properties of DyxCo1 -x/Bi/Py (Py is permalloy) trilayers. The temperature dependence of the magnetization has been examined using the magnetooptical Kerr effect and the optical refractive and absorption indices have been measured by spectral ellipsometry. It is shown that the thickness of the bismuth spacer affects the exchange coupling between the permalloy and DyCo layers, which manifests itself in the change in the magnetization compensation temperature and in the character of the exchange coupling.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Song Y. Y., Kim D. H., Yu S. C., Kim P. D., Turpanov I. A., Lee L. A., Buzmakov A. E., Lee K. W.
Заглавие : Observation of nonmonotonic oscillatory interlayer exchange coupling in Co/Cu/CoO films with varying Cu spacer thickness
Разночтения заглавия :авие SCOPUS: Observation of nonmonotonic oscillatory interlayer exchange coupling in CoCuCoO films with varying Cu spacer thickness
Место публикации : J. Appl. Phys.: AMER INST PHYSICS, 2008. - Vol. 103: 52nd Annual Conference on Magnetism and Magnetic Materials (NOV 05-09, 2007, Tampa, FL), Is. 7. - Ст.07C112. - ISSN 0021-8979, DOI 10.1063/1.2831390
Примечания : Cited References: 20
Предметные рубрики: GIANT MAGNETORESISTANCE
MAGNETIC-ANISOTROPY
LAYERS
BIAS
SUPERLATTICES
MULTILAYERS
TRILAYERS
Ключевые слова (''Своб.индексиров.''): copper--film thickness--thermal effects--cocucoo films--oscillatory interlayer exchange coupling.--metallic films
Аннотация: We report our experimental observation of interlayer exchange coupling phenomena in CoO/Cu/Co trilayers with systematic variation of Cu spacer layer thickness as well as temperature. It has been found that there exists a clear indication of nonmonotonically varying oscillatory interlayer exchange coupling. The amplitude of oscillation increases, reaches to the maximum, and decreases with increasing Cu spacer thickness from 1 to 16 atomic layers for all temperature ranges between 70 and 200 K. (c) 2008 American Institute of Physics.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Patrin K. G., Yakovchuk V.Yu., Patrin G. S., Yarikov S. A.
Заглавие : Magnetism and magnetoresistance in NiFe/Bi/NiFe films
Коллективы : Moscow International Symposium on Magnetism
Место публикации : Diffusion and Defect Data Pt.B: Solid State Phenomena. - 2012. - Vol. 190. - P.439-442. - ISBN 1012-0394, DOI 10.4028/www.scientific.net/SSP.190.439. - ISBN 9783037854365
Ключевые слова (''Своб.индексиров.''): antiferromagnetic interaction--bi spacer--hysteresis loop--interlayer coupling--magnetization--magnetoresistance--permalloy--trilayer films--antiferro-magnetic interactions--giant magnetoresistive--interlayer coupling--interlayer interactions--permalloy--spacer thickness--squid magnetometry--trilayer film--trilayers--antiferromagnetism--bismuth--giant magnetoresistance--hysteresis loops--magnetic materials--magnetic resonance--magnetization--magnetoresistance--electric resistance
Аннотация: Interlayer interactions in FeNi/Bi/FeNi trilayers have been experimentally studied. Based on the data of SQUID magnetometry and magnetic resonance investigations, it is shown that the interlayer interaction is determined by a bismuth spacer thickness and temperature. The giant magnetoresistive effect in the trilayer films has been discovered. В© (2012) Trans Tech Publications.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Gustaitsev A. O., Fedorishchev R. M., Bondarev I. A., Volkov N. V., Patrin G. S., Polyakov V. V., Polyakova K. P., Tarasov A. S.
Заглавие : Magnetic-field-dependent electron transport in NiFe/TiOy/NiFe trilayers
Коллективы : Euro-Asian Symposium "Trends in MAGnetism": Nanomagnetism
Место публикации : V Euro-Asian simposium "Trend in MAGnetism": Nanomagnetism: abstracts. - Vladivostok: FEFU, 2013. - С. 290. - ISBN 978-5-7444-3124-2
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Matsynin A. A., Myagkov V. G., Bykova L. E., Zhigalov V. S., Tambasov I. A.
Заглавие : Long-range chemical interactions in thin film solid state reactions: formation of Mn5Ge3 in Ge/Ag/Mn trilayers
Коллективы : Менделеевский съезд по общей и прикладной химии, Уральское отделение РАН
Место публикации : XX Mendeleev congr. on general and appl. chem.: Five-volumes book of abstracts. - 2016. - Vol. 2a: Chemistry and technology of materials and nanomaterials. - P.421
Примечания : Библиогр.: 1 назв.
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Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Myagkov V. G., Bykova L. E., Zhigalov V. S., Bon G. N.
Заглавие : Long-range chemical interactions in solid-state reactions: Effect of an inert Ag interlayer on the formation of L10-FePd in Epitaxial Pd(001)/Ag(001)/Fe(001) and Fe(001)/Ag(001)/Pd(001) trilayers
Коллективы : International Symposium on the Reactivity of Solids (18; 2014; Saint Petersburg)
Место публикации : International Symposium on the Reactivity of Solids. [[b]]ISRS-18[[/b]], 9—13 June 2014, Saint Petersburg, Russia : Book of Abstracts. - 2014. - С. 133. - ISBN 978-5-9651-0838-1
Аннотация: Diffusion is one of the unique phenomena that control major natural processes. It is a basic contributor to chemical reactions and structural transformations in solids.[1,2] Solid-state reactions, including those occurring in thin films and multilayers, comprise three successive stages: (1) breakage of reagent chemical bonds, (2) diffusion transfer of reagent atoms via a reaction product, and (3) rearrangement and formation of new bonds. The reaction rate is determined by step 2, which is the primary stage. Traditionally, solid-state diffusion of reacting atoms via a layer of a reaction product is considered to occur through an atomic exchange with nearest neighbors that leads to their random walk over a crystal lattice. The mean distance d that an atom moves over time t equals the mean-square atomic displacement 〈∆x2〉 and satisfies the Einstein equation d = 〈∆x2〉 = 2Dt. In numerous studies on solid-state reactions in thin films and multilayers, the parabolic growth of the reaction layer thickness d which satisfies the Einstein equation is presented as experimental proof of the diffusive nature of the reaction.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bayukov O. A., Mikhlin Y. L., Zhigalov V. S., Bykova L. E., Bondarenko G. N.
Заглавие : Long-range chemical interactions in solid-state reactions: effect of an inert Ag interlayer on the formation of L10-FePd in epitaxial Pd(0 0 1)/Ag(0 0 1)/Fe(0 0 1) and Fe(0 0 1)/Ag(0 0 1)/Pd(0 0 1) trilayers
Место публикации : Philos. Mag.: Taylor & Francis, 2014. - Vol. 94, Is. 23. - P.2595-2622. - ISSN 1478-6435, DOI 10.1080/14786435.2014.926037. - ISSN 1478-6443
Примечания : Cited References: 117
Предметные рубрики: HIGH-TEMPERATURE SYNTHESIS
THIN-FILMS
PHASE-FORMATION
MAGNETIC-PROPERTIES
X-RAY
MARTENSITIC TRANSFORMATIONS
PHOTOELECTRON-SPECTROSCOPY
STRUCTURAL CHARACTERISTICS
CASIMIR FORCE
GOLD-FILMS
Ключевые слова (''Своб.индексиров.''): fe-pd system--epitaxial thin film--inert ag buffer layer--diffusion--solid-state reactions--l1(0)--long-range chemical interactions
Аннотация: The effect of 0, 0.5, and 1 μm-thick Ag interlayers on the chemical interaction between Pd and Fe in epitaxial Pd(0 0 1)/Ag(0 0 1)/Fe(0 0 1)/MgO(0 0 1) and Fe(0 0 1)/Ag(0 0 1)/Pd(0 0 1)/MgO(0 0 1) trilayers has been studied using X-ray diffraction, 57Fe Mössbauer spectroscopy, X-ray photoelectron spectroscopy, and magnetic structural measurements. No mixing of Pd and Fe occurs via the chemically inert Ag layer at annealing temperatures up to 400 °C. As the annealing temperature is increased above 400 °C, a solid-state synthesis of an ordered L10-FePd phase begins in the Pd(0 0 1)/Ag(0 0 1)/Fe(0 0 1) and Fe(0 0 1)/Ag(0 0 1)/Pd(0 0 1) film trilayers regardless of the thickness of the buffer Ag layer. In all samples, annealing above 500 °C leads to the formation of a disordered FexPd1−x(0 0 1) phase; however, in samples lacking the Ag layer, the synthesis of FexPd1−x is preceded by the formation of an ordered L12-FePd3 phase. An analysis of the X-ray photoelectron spectroscopy results shows that Pd is the dominant moving species in the reaction between Pd and Fe. According to the preliminary results, the 2.2 μm-thick Ag film does not prevent the synthesis of the L10-FePd phase and only slightly increases the phase’s initiation temperature. Data showing the ultra-fast transport of Pd atoms via thick inert Ag layers are interpreted as direct evidence of the long-range character of the chemical interaction between Pd and Fe. Thus, in the reaction state, Pd and Fe interact chemically even though the distance between them is about 104 times greater than an ordinary chemical bond length.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Myagkov V. G., Bykova L. E., Bayukov O. A., Bondarenko G. N.
Заглавие : Long-range chemical interaction in solid-state synthesis: chemical interaction between Ni and Fe in epitaxial Ni(001)/Ag(001)/Fe(001) trilayers
Место публикации : Int. J. Self-Propagating High-Temp. Synth. - 2009. - Vol. 18, № 2. - С. 117–124. - DOI 10.3103/S1061386209020095
Аннотация: The effect of Ag interlayers 0, 60, 420, and 900 nm thick on the reaction of Ni with Fe in epitaxial Ni(001)/Ag(001)/Fe(001) trilayers has been studied by XRD, volume magnetocrystalline anisotropy, and mag netization measurements. Minor mixing was observed at the interface between Ag(001)/Ni(001) and Ag(001)/Fe(001) bilayers at temperatures above 900 K. When the epitaxial Ni(001)/Ag(001)/Fe(001) trilayer undergoes thermal annealing, a total atomic exchange between Ni and Ag occurs independently of an Ag inter layer thickness. Solid-state synthesis of alloy phases was found to occur in the sequence Fe/Ni Ni3Fe NiFe γpar (Fe3Ni-like phase). Temperatures for the formation of Ni3Fe and NiFe phases slightly increase with increasing interlayer thickness, while the initiation temperature for the γpar phase remains intact. We sug gest some scenarios for the observed atomic exchange in the system under consideration. The results are ratio nalized in terms of long-range chemical interaction between Ni and Fe via an Ag interlayer. This means that Ni reacts with Fe despite the fact that a separation between the above atoms is greater than the length of normal chemical bond by a factor of about 104
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11.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Myagkov V. G., Zhigalov V. S., Bykova L. E., Bondarenko G. N.
Заглавие : Long-range chemical interaction in solid-state synthesis: chemical interaction between Ni and Fe in epitaxial Ni(001)/Ag(001)/Fe(001) ) trilayers
Коллективы : International symposium on self-propagating high temperature synthesis
Место публикации : Int. Symp. on Self-propag. High-Temp. Synth. SHS X: July 6-11, 2009, Tsakhadzor / Armenia. - 2009. - P.97
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Patrin G. S., Yakovchuk V.Yu., Velikanov D. A., Patrin K. G., Yarikov S. A.
Заглавие : Interlayer interactions in FeNi/Bi/FeNi trilayers
Место публикации : Bull. Russ. Acad. Sci.: Phys.: Allerton Press, 2012. - Vol. 76, Is. 2. - P.177-179. - ISSN 1062-8738
Примечания : Cited References: 5. - This study was supported by the Russian Foundation for Basic Research, project no. 110200675a.
Ключевые слова (''Своб.индексиров.''): giant magnetoresistance effect--interlayer interactions--spacer thickness--squid magnetometry--trilayers--magnetic resonance--bismuth
Аннотация: Interlayer interactions in FeNi/Bi/FeNi films are studied experimentally. It is established by SQUID magnetometry and magnetic resonance investigations that the interlayer interaction in these films is determined by the bismuth spacer thickness and temperature. A giant magnetoresistance effect is observed in the investigated trilayers. © 2012 Allerton Press, Inc.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Kobyakov A. V., Patrin G. S., Turpanov I. A., Li L. A., Patrin K. G., Yushkov V. I., Petrakovskaya E. A., Rautskii M. V.
Заглавие : Interlayer coupling in Co/Ge/Co trilayers
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium
Место публикации : Solid State Phenomena. - 2011. - Vol. 168-169. - P.273-276. - ISSN 10120394 ; 9783037850213, DOI 10.4028/www.scientific.net/SSP.168-169.273
Ключевые слова (''Своб.индексиров.''): electron magnetic resonance--interlayer coupling--magnetization--magnetoresistance--semiconductor spacer--trilayer films--electric resistance--magnetic field effects--magnetization--magnetoelectronics--magnetoresistance--magnetic resonance--magnetism--magnetization--magnetoresistance--electron magnetic resonance--exchange constants--interlayer coupling--semiconductor spacer--squid magnetometry--temperature dependent--trilayer film--trilayers--magnetic resonance--cobalt
Аннотация: The interlayer coupling in Co/Ge/Co trilayer films has been experimentally studied by the SQUID magnetometry and electron magnetic resonance. It has been found that the interlayer coupling is temperature-dependent. The values of the exchange constants have been determined.
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14.

Вид документа : Статья из сборника (однотомник)
Шифр издания :
Автор(ы) : Matsynin A. A., Myagkov V. G., Bykova L. E., Zhigalov V. S., Tambasov I. A., Bondarenko G. N.
Заглавие : Formation of ferromagnetic Mn5Ge3 phase in Ge/Ag/Mn trilayers
Коллективы : Euro-Asian Symposium "Trends in MAGnetism", "Trends in MAGnetism", Euro-Asian Symposium, Институт физики им. Л.В. Киренского Сибирского отделения РАН
Место публикации : VI Euro-Asian Symposium "Trends in MAGnetism" (EASTMAG-2016): abstracts/ ed.: O. A. Maksimova, R. D. Ivantsov. - Krasnoyarsk: KIP RAS SB, 2016. - Ст.P10.13. - P.481. - ISBN 978-5-904603-06-9 (Шифр -478014040)
Примечания : References: 2. - This study was supported by the RFBR (Grants 15-02-00948-A, 16-03-00069 А), and by the program UMNIK-2015 №0011727
Ключевые слова (''Своб.индексиров.''): diluted magnetic semiconductor--spintronics--ferromagnetic mn5ge3--thin-film solid-state reaction
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15.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Patrin G. S., Volkov N. V., Ovchinnikov S. G., Eremin E. V., Panova M. A., Varnakov S. N.
Заглавие : Effect of the ferromagnetic layer thickness on the interlayer interaction in Fe/Si/Fe trilayers
Место публикации : JETP Letters. - 2004. - Vol. 80, Is. 7. - P.491-493. - ISSN 0021-3640, DOI 10.1134/1.1839297
Примечания : Cited References: 13
Предметные рубрики: NONMETALLIC SPACER
DEPENDENCE
Аннотация: Three-layer magnetic film systems Fe/Si/Fe have been studied by the method of magnetic resonance. It is established that the ferromagnetic layer thickness affects the magnitude of the interlayer exchange interaction in this system. A mechanism explaining the observed effect is proposed. (C) 2004 MAIK "Nauka/Interperiodica".
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