CIRCULAR-DICHROISM IN PHOTOEMISSION FROM NONMAGNETIC, LOW-Z SOLIDS - A CONSPICUOUS EFFECT OF THE PHOTON SPIN

被引：22

作者：

SCHONHENSE, G ^{[1
]}

WESTPHAL, C ^{[1
]}

BANSMANN, J ^{[1
]}

GETZLAFF, M ^{[1
]}

机构：

[1] UNIV BIELEFELD,FAK PHYS,W-4800 BIELEFELD,GERMANY

来源：

EUROPHYSICS LETTERS | 1992年 / 17卷 / 8BIS期

关键词：

ELECTRON STATES IN LOW-DIMENSIONAL STRUCTURES; OPTICAL ROTATORY POWER; PHOTOEMISSION AND PHOTOELECTRON SPECTRA;

D O I：

10.1209/0295-5075/17/8/011

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A new phenomenon has been observed in solid-state photoemission with circularly polarized light. Its outward appearance is similar to the circular dichroism in photoabsorption. For special observation geometries, large photoelectron intensity asymmetries arise upon reversal of the photon helicity. The effect is not based on spin-orbit interaction, as is demonstrated by the example of photoemission from graphite (Z = 6). Similar asymmetries are expected for all single-crystal solids thus opening up a new class of experiments providing new tests for photoemission theories. Detailed information on the dynamics of photoexcitation of a solid can be gained, as discussed in terms of a simple orbital model.

引用

页码：727 / 732

页数：6

共 22 条

[1] PHOTOIONIZATION OF ORIENTED MOLECULES [J].