NEUTRALIZATION AND NEGATIVE-ION FORMATION BY IMPACT OF LOW-ENERGY H+ ON IONIC COMPOUND SURFACES

被引：45

作者：

SOUDA, R ^{[1
]}

YAMAMOTO, K ^{[1
]}

HAYAMI, W ^{[1
]}

TILLEY, B ^{[1
]}

AIZAWA, T ^{[1
]}

ISHIZAWA, Y ^{[1
]}

机构：

[1] SHERRITT INC,SHERRITT TECHNOL,FT SASKATCHEWAN,AB T8L 3W4,CANADA

来源：

SURFACE SCIENCE | 1995年 / 324卷 / 01期

关键词：

ALKALI HALIDES; ION-SOLID INTERACTIONS; SCATTERING; CHANNELING;

D O I：

10.1016/0039-6028(94)00780-2

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 mechanism of neutralization of and negative ionization from hydrogen ions is studied via experiments in which H+ beams are incident on LiCl surfaces, combined with molecular-orbital-energy calculations. It is found that charge transfer and electron excitation occur due to the resonant-tunneling and electron-promotion mechanisms via a short-lived chemisorption state of hydrogen. The probability for H+ to K- conversion at the LiCl surface depends on the species of the target atoms and is enhanced in collision with Li+ by one order of magnitude relative to Cl-.

引用

页码：L349 / L354

页数：6

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