COUPLING OF THE DISSOCIATIVE ELECTRON-ATTACHMENT RESONANCES OF CO2 TO ANIONIC EXCITATIONS IN RARE-GAS SOLIDS

被引：12

作者：

HUELS, MA

PARENTEAU, L

SANCHE, L

机构：

[1] Département de Médecine Nucléaire et de Radiobiologie, Faculté de Médecine, Groupe du Conseil des Recherches Médicales du Canada en Sciences des Radiations, Sherbrooke

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 101卷 / 1-2期

基金：

英国医学研究理事会;

关键词：

D O I：

10.1016/0168-583X(95)00058-5

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

Significant sharp enhancements(FWHM less than or equal to 0.5 eV) are observed in electron stimulated desorption O- yields, obtained from small quantities of CO2 physisorbed on thick rare gas substrate films. The enhancements are positioned 0.3-0.4 eV below the lowest substrate exciton energy, and are attributed to a coupling of the (electron plus exciton) core-excited anion resonances of the rare gas atoms to the dissociative temporary molecular anion states of the co-adsorbed CO2 at the solid's surface. This causes a transfer of the charge and excitation energy to the co-adsorbate.

引用

页码：203 / 206

页数：4

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