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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Zhigalov V. S., Myagkov V. G., Bayukov O. A., Bykova L. E., Bondarenko G. N., Matsynin A. A.
Заглавие : Phase transformations in Mn/Fe(001) films: Structural and magnetic investigations
Коллективы :
Russian Foundation for Basic Research [07-03-00190]; Ministry of Education and Science of the Russian Federation [2.1.1/4399]
Место публикации : JETP Letters. - 2009. - Vol. 89, Is. 12. - P.621-625. - ISSN 0021-3640, DOI 10.1134/S0021364009120066
Примечания : Cited References: 36. - This work was supported by the Russian Foundation for Basic Research (project no. 07-03-00190) and by the Ministry of Education and Science of the Russian Federation (project no. 2.1.1/4399, program " Development of the Scientific Potentiality of Higher Education" in 2009- 2010).
Предметные рубрики: HIGH-TEMPERATURE SYNTHESIS
SOLID-STATE SYNTHESIS
FE-MN
THIN-FILMS
MARTENSITIC TRANSFORMATIONS
KINETICS
ALLOY
Аннотация: The solid-phase synthesis in epitaxial Mn/Fe(001) bilayer film systems with 24 at % of Mn has been shown to start at a temperature of 220A degrees C with the formation of a gamma-austenite lattice and the Mn and Fe films react completely under annealing to 600A degrees C. In the sample cooling process after annealing below 220A degrees C, the gamma austenite undergoes a martensitic transformation to an oriented a(100) martensite. When the annealing temperature is increased above 600A degrees C, Mn atoms migrate from the gamma-lattice, which becomes unstable, and the film is partially again transformed to the epitaxial Fe(001) layer. The solid-phase synthesis in Mn/Fe(001) bilayer nanofilms and multilayers is assumingly determined by the inverse epsilon - gamma martensitic transformation in the Mn-Fe system. The existence of a new low-temperature (similar to 220A degrees C) structure transition in the Mn-Fe system with a high iron content is assumed.
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