FORMATION OF AN AMORPHOUS PHASE IN CR-1-XFEX FILMS OBTAINED BY THERMAL EVAPORATION

被引：25

作者：

XIA, SK ^{[1
]}

BAGGIOSAITOVITCH, E ^{[1
]}

LARICA, C ^{[1
]}

机构：

[1] UNIV FED ESPIRITO SANTO,DEPT FIS & QUIM,BR-29069 VITORIA,ES,BRAZIL

来源：

PHYSICAL REVIEW B | 1994年 / 49卷 / 02期

关键词：

D O I：

10.1103/PhysRevB.49.927

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cr1-xFex alloy films (congruent to 3000 Angstrom) were prepared by thermal coevaporation at room temperature at a deposition rate of 25 Angstrom/min. It was found that a pure amorphous phase can be obtained in the composition range 0.25 < x < 0.60, while out of this range the bcc crystalline phase appears. The structural characterization and the magnetic properties were studied by x-ray diffraction and Mossbauer spectroscopy, respectively. The crystallization temperature for an amorphous Cr70Fe30 film was found to be about 630 K as determined by in situ Mossbauer measurements. Since Cr-Fe is not a ready-glass-forming system, the amorphization process was discussed through the thermodynamics of the system and the kinetics of the condensation process.

引用

页码：927 / 931

页数：5

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