ENHANCEMENT OF RESONANCE FEATURES AT CRITICAL-VALUES OF THE INCIDENCE PARAMETERS IN GAS ATOM SURFACE ELASTIC-SCATTERING - THE HE-4-CU(110) EXAMPLE

被引：16

作者：

HERNANDEZ, M ^{[1
]}

MIRETARTES, S ^{[1
]}

VILLARREAL, P ^{[1
]}

DELGADOBARRIO, G ^{[1
]}

机构：

[1] UNIV LA LAGUNA,DIPARTIMENTO FIS FUNDAMENTAL & EXPTL,E-38203 LA LAGUNA,SPAIN

来源：

SURFACE SCIENCE | 1991年 / 251卷

关键词：

D O I：

10.1016/0039-6028(91)91016-Q

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：

Selective adsorption resonance positions and widths are very dependent on the experimental parameters (E, theta, phi) of the wave vector of the incident atom because we are dealing with a moving threshold multichannel scattering. However, inherent widths of these resonances could be given when the kinetic energy of the resonant channel is taken as a dynamical variable. Thus, a way of relating those widths with the corresponding ones associated to (E, theta, phi) is proposed. As a result of this analysis, and when E is varied holding angles fixed, an enhancement of resonance features is found at certain critical values of these parameters. New critical kinematic peaks are quantitatively predicted for the He-4-Cu(110) system.

引用

页码：369 / 372

页数：4

共 16 条

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