Phase transformations in Mn/Fe(001) films: Structural and magnetic investigations

被引：10
|
作者：
Zhigalov, V. S. [1 ]
Myagkov, V. G. [2 ]
Bayukov, O. A. [2 ]
Bykova, L. E. [2 ]
Bondarenko, G. N. [3 ]
Matsynin, A. A. [1 ]
机构：
[1] Reshetnev Siberian State Aerosp Univ, Krasnoyarsk 660036, Russia
[2] Russian Acad Sci, LV Kirensky Phys Inst, Siberian Branch, Krasnoyarsk 660036, Russia
[3] Russian Acad Sci, Inst Chem & Chem Technol, Siberian Branch, Krasnoyarsk 660036, Russia
来源：
JETP LETTERS | 2009年 / 89卷 / 12期
基金：
俄罗斯基础研究基金会;
关键词：
HIGH-TEMPERATURE SYNTHESIS; SOLID-STATE SYNTHESIS; FE-MN; THIN-FILMS; MARTENSITIC TRANSFORMATIONS; KINETICS; ALLOY;
D O I：
10.1134/S0021364009120066
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
引用
收藏
页码：621 / 625
页数：5
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