MAGNETIC STEP ANISOTROPIES

被引:67
作者
ALBRECHT, M
FURUBAYASHI, T
PRZYBYLSKI, M
KORECKI, J
GRADMANN, U
机构
[1] TECH UNIV CLAUSTHAL,INST PHYS,W-3392 CLAUSTHAL ZELLERFE,GERMANY
[2] NATL RES INST MET,TOKYO 153,JAPAN
[3] STANISLAW STASZIC UNIV MIN & MET,DEPT SOLID STATE PHYS,PL-30059 KRAKOW,POLAND
关键词
D O I
10.1016/0304-8853(92)91269-Y
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Magnetic step anisotropies result from changed local symmetries of step atoms in comparison with surface atoms. They are determined experimentally for the case of steps along [001) on Fe(110) surfaces by comparing the anisotropies of epitaxial Fe(110) films on W(110) with smooth surfaces and those with a high density of steps along [001], as tested by spot profile analysis LEED (SPA-LEED). Surplus anisotropy energies per step atoms are of the same order as anisotropy energies per surface atom. The experimental results are in surprisingly good agreement with predictions from an appropriate extension of Neel's phenomenological model of surface anisotropies to step anisotropies.
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页码:207 / 220
页数:14
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