SPIN POLARIZATION IN NORMAL PHOTOEMISSION BY LINEARLY POLARIZED-LIGHT FROM NONMAGNETIC (110) SURFACES

被引：27

作者：

HENK, J

FEDER, R

机构：

[1] Theoretische Festkörperphysik, Universität Duisburg, Duisburg

来源：

EUROPHYSICS LETTERS | 1994年 / 28卷 / 08期

关键词：

D O I：

10.1209/0295-5075/28/8/012

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

For linearly polarized radiation with a non-zero surface projection of the electric-field vector, photoelectrons emitted normal to non-magnetic surfaces with an at most twofold rotation axis generally have a spin polarization component perpendicular to the surface. This is firstly substantiated by symmetry arguments. For cubic (110) surfaces, an analytical calculation reveals that this effect is due to the spin-orbit-induced hybridization of basis functions of different spatial-symmetry types. Numerical relativistic one-step-model multiple-scattering calculations for Pt(110) yield polarization values up to 60%, which depend sensitively on the surface reconstruction.

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页码：609 / 614

页数：6

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