MAGNETIC AND ELECTRONIC-PROPERTIES OF GAMMA-FE AND GAMMA-FE/AL PARTICLES IN COPPER

被引：21

作者：

GUENZBURGER, D

ELLIS, DE

机构：

[1] NORTHWESTERN UNIV,DEPT PHYS & ASTRON,EVANSTON,IL 60208

[2] NORTHWESTERN UNIV,MAT RES CTR,EVANSTON,IL 60208

来源：

PHYSICAL REVIEW B | 1995年 / 52卷 / 18期

关键词：

D O I：

10.1103/PhysRevB.52.13390

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The local-density discrete variational method was employed to study the electronic structure and magnetic properties of ferromagnetic (FM) and antiferromagnetic (AFM) gamma-Fe, represented by a 62-atom embedded cluster of cubic geometry, and of an iron particle in a copper matrix, represented by the cubic embedded cluster Fe14Cu48 It was found that the Cu 3d magnetic moments are aligned parallel to the Fe 3d moments, whereas the Cu(4s,4p) moments are aligned antiparallel, in agreement with recent experiments on multilayers. The influence of substitutional Al in gamma-Fe and in the Fe particle in Cu was assessed. It was found that the presence of an Al impurity disrupts the AFM state locally. Magnetic hyperfine fields were calculated in all cases for comparison with Mossbauer data.

引用

页码：13390 / 13398

页数：9

共 31 条

[1] NEUTRON DIFFRACTION DETERMINATION OF ANTIFERROMAGNETISM IN FACE-CENTERED CUBIC (GAMMA) IRON [J].