OPTICALLY POLARIZED CONDUCTION-BAND ELECTRONS IN TUNGSTEN OBSERVED BY SPIN-POLARIZED PHOTOEMISSION

被引：19

作者：

ZURCHER, P ^{[1
]}

MEIER, F ^{[1
]}

CHRISTENSEN, NE ^{[1
]}

机构：

[1] TECH UNIV DENMARK,PHYS 1 LAB,DK-2800 LYNGBY,DENMARK

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 43卷 / 01期

关键词：

D O I：

10.1103/PhysRevLett.43.54

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Along the (100) direction of tungsten, interband transitions induced by circularly polarized light of energy 1.5eV< hν< 4.1 eV lead to spin polarization of the excited conduction electrons. This is observed by measuring the spin polarization of the photoelectrons emitted from a cesiated crystal surface. The measured polarization values depend sensitively on the s-, p-, and d-hybridization properties of the conduction bands. Excited-state lifetimes are obtained from the widths of the polarization structures. © 1979 The American Physical Society.

引用

页码：54 / 57

页数：4

共 13 条

[1]

Alvarado S. F., 1978, Photoemission and the electronic properties of surfaces, P437

[2] VOLUME AND SURFACE PHOTOEMISSION FROM TUNGSTEN .1. CALCULATION OF BAND-STRUCTURE AND EMISSION-SPECTRA [J].