CIRCULAR-DICHROISM IN PHOTOEMISSION FROM SURFACES

被引：30

作者：

SCHONHENSE, G ^{[1
]}

WESTPHAL, C ^{[1
]}

BANSMANN, J ^{[1
]}

GETZLAFF, M ^{[1
]}

NOFFKE, J ^{[1
]}

FRITSCHE, L ^{[1
]}

机构：

[1] TECH UNIV CLAUSTHAL,INST THEORET PHYS,W-3392 CLAUSTHAL ZELLERFE,GERMANY

来源：

SURFACE SCIENCE | 1991年 / 251卷

关键词：

D O I：

10.1016/0039-6028(91)90967-W

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In angle-resolved photoelectron spectroscopy with circularly polarized radiation, the photoemission intensities depend on photon helicity. This phenomenon arises for pure electric dipole transitions and nonchiral species provided the target exhibits a spatial orientation (or alignment) and the experimental geometry defines a "handedness". The new type of spectroscopy is illustrated by the examples of photoemission from graphite (0001) and Pd(111) surfaces. It is evident that the effect does not result from the spin-orbit interaction in contrast to the electron spin-polarization phenomena. The measured asymmetries in a direct interband transition depend sensitively on hybridization of the initial or final band states.

引用

页码：132 / 135

页数：4

共 21 条

[1] CIRCULAR-DICHROISM IN PHOTOIONIZATION OF ORIENTED NONLINEAR MOLECULES [J].

CHANDRA, N .

PHYSICAL REVIEW A, 1989, 39 (04) :2256-2259

[2] PHOTOIONIZATION OF ORIENTED MOLECULES [J].

CHEREPKOV, NA ;

KUZNETSOV, VV .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1987, 7 (03) :271-280

[3] CIRCULAR-DICHROISM OF MOLECULES IN THE CONTINUOUS ABSORPTION REGION [J].

CHEREPKOV, NA .

CHEMICAL PHYSICS LETTERS, 1982, 87 (04) :344-348

[4] CIRCULAR-DICHROISM IN PHOTOELECTRON ANGULAR-DISTRIBUTIONS FROM ADSORBED ATOMS [J].

DUBS, RL ;

DIXIT, SN ;

MCKOY, V .

PHYSICAL REVIEW B, 1985, 32 (12) :8389-8391

[5] SPIN-DEPENDENT PHOTOEMISSION INTENSITIES FROM PLATINUM(111) [J].

GARBE, J ;

KIRSCHNER, J .

PHYSICAL REVIEW B, 1989, 39 (14) :9859-9864

[6]

HEINZMANN U, 1985, POLARIZED ELECTRONS

[7]

MASON SF, 1979, OPTICAL ACTIVITY C C, V48

[8] BAND-STRUCTURE CALCULATION AND PHOTOEMISSION ANALYSIS OF IRIDIUM [J].

NOFFKE, J ;

FRITSCHE, L .

JOURNAL OF PHYSICS F-METAL PHYSICS, 1982, 12 (05) :921-933

[9]

NOFFKE J, UNPUB

[10] SPIN-DEPENDENT PHOTOEMISSION INTENSITIES FROM SOLIDS [J].

OEPEN, HP ;

HUNLICH, K ;

KIRSCHNER, J .

PHYSICAL REVIEW LETTERS, 1986, 56 (05) :496-499

← 1 2 3 →