Autoionisation of doubly excited states in the C 1s photoexcitation of CO

被引：34

作者：

Koppe, HM

Kempgens, B

Kilcoyne, ALD

Feldhaus, J

Bradshaw, AM

机构：

[1] Fritz-Haber-Institut der M., 14195 Berlin

[2] HASYLAB, DESY, 22603 Hamburg

来源：

CHEMICAL PHYSICS LETTERS | 1996年 / 260卷 / 1-2期

关键词：

D O I：

10.1016/0009-2614(96)00896-2

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：

The vibrationally resolved C 1s(-1) main line in the photoelectron spectrum of CO has been investigated just above the C Is ionisation threshold where the absorption cross section is characterised by sharp, intense doubly excited states. They decay in part via resonant Auger processes, but can also couple via autoionisation to the C 1s(-1) continuum, causing striking changes in the vibrational fine structure. In some cases very high vibrational levels up to quantum numbers of upsilon' = 7 are populated.

引用

页码：223 / 228

页数：6

共 16 条

[1]

DEHMER JL, 1987, HDB SYNCHROTRON RAD, V2

[2] CARBON AND OXYGEN K-EDGE PHOTOIONIZATION OF THE CO MOLECULE [J].

DOMKE, M ;

XUE, C ;

PUSCHMANN, A ;

MANDEL, T ;

HUDSON, E ;

SHIRLEY, DA ;

KAINDL, G .

CHEMICAL PHYSICS LETTERS, 1990, 173 (01) :122-128

[3]

DOMKE M, 1990, CHEM PHYS LETT, V174, pE668

[4]

Eland J., 1984, PHOTOELECTRON SPECTR

[5] THE EFFECT OF AUTOIONIZATION ON THE O-2+X2-PI-G VIBRATIONAL BRANCHING RATIOS IN THE WAVELENGTH RANGE 905-1,000 A [J].

HOLLAND, DMP ;

WEST, JB .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1987, 4 (04) :367-371

[6]

KEMPGENS B, IN PRESS

[7] High-resolution C 1s photoelectron spectra of methane [J].

Koppe, HM ;

Itchkawitz, BS ;

Kilcoyne, ALD ;

Feldhaus, J ;

Kempgens, B ;

Kivimaki, A ;

Neeb, M ;

Bradshaw, AM .

PHYSICAL REVIEW A, 1996, 53 (06) :4120-4126

[8]

Koppe HM, 1995, J ELECTRON SPECTROSC, V75, P97, DOI 10.1016/0368-2048(95)02391-7

[9] HIGH-RESOLUTION K-SHELL PHOTOABSORPTION MEASUREMENTS OF SIMPLE MOLECULES [J].

MA, Y ;

CHEN, CT ;

MEIGS, G ;

RANDALL, K ;

SETTE, F .

PHYSICAL REVIEW A, 1991, 44 (03) :1848-1858

[10]

PEATMAN W, 16090 BESSY TB

← 1 2 →