OBSERVATION OF NONISOTROPIC AUGER ANGULAR-DISTRIBUTION IN THE C(1S) SHAPE RESONANCE OF CO

被引：60

作者：

HEMMERS, O

HEISER, F

EIBEN, J

WEHLITZ, R

BECKER, U

机构：

[1] Fritz-Haber-Institut der Max-Planck-Gesellschaft

来源：

PHYSICAL REVIEW LETTERS | 1993年 / 71卷 / 07期

关键词：

D O I：

10.1103/PhysRevLett.71.987

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Angle-resolved high-resolution C(KVV) Auger spectra of CO were taken in the vicinity of the C(1s) sigma* shape resonance. These spectra show clear evidence for the theoretically predicted anisotropic K-shell Auger emission in molecules. Complementary results from angle-resolved photoion spectroscopy show that the small size of the observed effect is, besides the varying intrinsic anisotropy of the Auger decay, also due to a smaller anisotropy in the primary absorption process than originally predicted but in good agreement with more recent calculations. Contrary to this, satellite Auger transitions show unexpectedly large anisotropies.

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页码：987 / 990

页数：4

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