Electric-octupole and pure-electric-quadrupole effects in soft-X-ray photoemission

被引：80

作者：

Derevianko, A

Hemmers, O

Oblad, S

Glans, P

Wang, H

Whitfield, SB

Wehlitz, R

Sellin, IA

Johnson, WR

Lindle, DW

机构：

[1] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

[2] Univ Nevada, Dept Chem, Las Vegas, NV 89154 USA

[3] Stockholm Univ, S-10405 Stockholm, Sweden

[4] Univ Uppsala, Dept Phys, S-75121 Uppsala, Sweden

[5] Univ Wisconsin, Dept Phys, Eau Claire, WI 54702 USA

[6] Univ Wisconsin, Ctr Synchrotron Radiat, Stoughton, WI 53589 USA

[7] Univ Tennessee, Dept Phys, Knoxville, TN 37996 USA

来源：

PHYSICAL REVIEW LETTERS | 2000年 / 84卷 / 10期

关键词：

D O I：

10.1103/PhysRevLett.84.2116

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Second-order [O(k(2)), k = omega/c] nondipole effects in soft-x-ray photoemission are demonstrated via an experimental and a theoretical study of angular distributions of neon valence photoelectrons in the 100-1200 eV photon-energy range. A newly derived theoretical expression for nondipolar angular distributions characterizes the second-order effects using four new parameters with primary contributions from pure-quadrupole and octupole-dipole interference terms;Independent-particle calculations of these parameters account for a significant portion of the existing discrepancy between experiment and theory for Ne 2p first-order nondipole parameters.

引用

页码：2116 / 2119

页数：4

共 16 条

[11] MULTICHANNEL RELATIVISTIC RANDOM-PHASE APPROXIMATION FOR THE PHOTO-IONIZATION OF ATOMS [J].