The poisonous effect of alkali adatoms on Cl-2 sticking

被引：6

作者：

Yoneda, S ^{[1
]}

Babasaki, Y ^{[1
]}

Tanaka, M ^{[1
]}

Geuzebroek, FH ^{[1
]}

Koga, F ^{[1
]}

Yamazaki, N ^{[1
]}

Namiki, A ^{[1
]}

机构：

[1] TOYOHASHI UNIV TECHNOL, DEPT ELECT & ELECTR ENGN, TEMPAKU KU, TOYOHASHI, AICHI 441, JAPAN

来源：

SURFACE SCIENCE | 1996年 / 363卷 / 1-3期

关键词：

alkali metals; halogens; low index crystal surfaces; molecule-solid scattering and diffraction - inelastic; silicon; sticking; surface chemical reaction;

D O I：

10.1016/0039-6028(96)00081-7

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：

Cl-2 sticking on alkali-covered Si(100) is activated by the incident energies, E(i), i.e., there is a potential barrier to sticking. To understand the origin of the activation barrier, scattering experiments are performed. The observed Cl-2 scattering is predominated by direct-inelastic scattering even for E(i) less than or equal to 0.1 eV, suggesting that the Cs adatoms play a role in making the physisorption potential shallow, or the gas-surface interaction potential repulsive. Pauli repulsion is proposed for the origin of this repulsive interaction.

引用

页码：11 / 21

页数：11

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