BRILLOUIN-SCATTERING DETERMINATION OF MAGNETIC AND ELASTIC-CONSTANTS IN INVAR-TYPE LA(FEXAL1-X)(13) AMORPHOUS ALLOY-FILMS

被引：7

作者：

YOSHIHARA, A ^{[1
]}

SHIMADA, Y ^{[1
]}

CHIANG, TH ^{[1
]}

FUKAMICHI, K ^{[1
]}

机构：

[1] TOHOKU UNIV,FAC ENGN,DEPT MAT SCI,SENDAI 980,JAPAN

来源：

JOURNAL OF APPLIED PHYSICS | 1994年 / 75卷 / 03期

关键词：

D O I：

10.1063/1.356363

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Magnetic and elastic constants of Invar-type La(Fe(x)Al1-x)(13) amorphous alloy films (x=0.8-0.95) have been determined by Brillouin scattering at 290 K. Observation of the well-defined standing spin waves up to fourth order allowed us to determine the spin wave stiffness at T/T-c similar to 0.76, as 63+/-10 meV A(2) for the x=0.8 alloy film. Young's modulus and Poisson's ratio as a function of the Fe concentration x have been determined from the surface phase velocities of the Rayleigh and Sezawa waves. Here E(x)=1.08-0.93(1-x)10(12) dyn/cm(2) for Young's modulus and sigma(x)=0.34+/-0.2 for Poisson's ratio have been obtained through numerical analyses for the surface acoustic wave dispersions.

引用

页码：1733 / 1738

页数：6

共 27 条

[1]

CHIANG TC, UNPUB

[2] MAGNETIC-PROPERTIES OF LA(FEXAL1-X)13 AMORPHOUS-ALLOYS [J].