Spin-resolved density of states at the surface of NiMnSb

被引:54
|
作者
Zhu, W
Sinkovic, B
Vescovo, E
Tanaka, C
Moodera, JS
机构
[1] Univ Connecticut, Dept Phys, Storrs, CT 06269 USA
[2] Brookhaven Natl Lab, Natl Synchrotron Light Source, Upton, NY 11973 USA
[3] MIT, Francis Bitter Natl Magnet Lab, Cambridge, MA 02139 USA
来源
PHYSICAL REVIEW B | 2001年 / 64卷 / 06期
关键词
D O I
10.1103/PhysRevB.64.060403
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Spin-resolved photoemission measurements from polycrystalline NiMnSb films reveal spin-resolved density of states which are in qualitative agreement with local spin density functional band structure calculations [Phys. Rev. B 51, 10 436 (1995)]. The polarization of electrons close to the Fermi level is however found to be at most 40%, in contrast to the predicted half-metallic behavior. This discrepancy is attributed to lower remnant magnetization of the surface region and/or the presence of other phases.
引用
收藏
页码:604031 / 604034
页数:4
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