MOLECULAR EFFECTS ON INNER-SHELL LIFETIMES - POSSIBLE TEST OF THE ONE-CENTER MODEL OF AUGER DECAY

被引:140
作者
COVILLE, M [1 ]
THOMAS, TD [1 ]
机构
[1] OREGON STATE UNIV, CTR ADV MAT RES, CORVALLIS, OR 97331 USA
来源
PHYSICAL REVIEW A | 1991年 / 43卷 / 11期
关键词
D O I
10.1103/PhysRevA.43.6053
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Experimental 1s linewidths for compounds containing carbon, nitrogen, and oxygen are much greater than those predicted for the free atoms. Using a one-center model, we have determined the effect of molecular composition on the linewidth. The predicted linewidth in methane is 1.7 times that for a carbon atom. Increasing the electronegativity of ligands decreases the predicted linewidth; this result is in contrast to the predictions of the multicenter model [E. Hartmann, J. Phys. B 21, 1173 (1988)]. Except for CO2, the theoretical linewidths are in good agreement with experiment.
引用
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页码:6053 / 6056
页数:4
相关论文
共 19 条
[11]   DIFFERENT CORE-HOLE LIFETIME AND SCREENING IN THE SURFACE OF W(110) [J].
RIFFE, DM ;
WERTHEIM, GK ;
CITRIN, PH .
PHYSICAL REVIEW LETTERS, 1989, 63 (18) :1976-1979
[12]   ELECTRON-IMPACT EXCITATION OF INNER-SHELL EXCITED-STATES OF CO [J].
SHAW, DA ;
KING, GC ;
CVEJANOVIC, D ;
READ, FH .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1984, 17 (10) :2091-2100
[13]   THE OBSERVATION OF ELECTRIC-DIPOLE-FORBIDDEN INNER-SHELL TRANSITIONS IN N2 AND AR BY THE ELECTRON ENERGY-LOSS TECHNIQUE [J].
SHAW, DA ;
KING, GC ;
READ, FH ;
CVEJANOVIC, D .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1982, 15 (11) :1785-1793
[14]   CHEMICAL EFFECTS ON LIFETIME OF 1S-HOLE STATES [J].
SHAW, RW ;
THOMAS, TD .
PHYSICAL REVIEW LETTERS, 1972, 29 (11) :689-&
[15]   AUGER-ELECTRON SPECTRUM OF WATER-VAPOR [J].
SIEGBAHN, H ;
ASPLUND, L ;
KELFVE, P .
CHEMICAL PHYSICS LETTERS, 1975, 35 (03) :330-335
[16]   CARBON K-SHELL EXCITATION IN SMALL MOLECULES BY HIGH-RESOLUTION ELECTRON-IMPACT [J].
TRONC, M ;
KING, GC ;
READ, FH .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1979, 12 (01) :137-157
[17]   NITROGEN K-SHELL EXCITATION IN N2, NO AND N2O BY HIGH-RESOLUTION ELECTRON ENERGY-LOSS SPECTROSCOPY [J].
TRONC, M ;
KING, GC ;
READ, FH .
JOURNAL OF PHYSICS B-ATOMIC MOLECULAR AND OPTICAL PHYSICS, 1980, 13 (05) :999-1008
[18]   NONRELATIVISTIC AUGER RATES, X-RAY RATES, AND FLUORESCENCE YIELDS FOR K SHELL [J].
WALTERS, DL ;
BHALLA, CP .
PHYSICAL REVIEW A, 1971, 3 (06) :1919-&
[19]   K-SHELL ENERGY-LOSS SPECTRA OF 2.5 KEV ELECTRONS IN CO2 AND N2O [J].
WIGHT, GR ;
BRION, CE .
JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA, 1974, 3 (03) :191-205