ACCURATE CALCULATION OF ATOMIC RESONANCES NEAR SURFACES

被引：30

作者：

DEUTSCHER, SA ^{[1
]}

YANG, XZ ^{[1
]}

BURGDORFER, J ^{[1
]}

机构：

[1] OAK RIDGE NATL LAB,OAK RIDGE,TN 37831

来源：

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 1995年 / 100卷 / 2-3期

关键词：

D O I：

10.1016/0168-583X(94)00850-7

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present first results of new accurate calculations for atomic resonances near an Al surface. We employ large-scale matrix diagonalization involving greater than or equal to 1000 basis states and realistic effective single-particle potentials. We implement two complementary techniques - the complex rotation method and the stabilization method. We also investigate strongly perturbed atomic wave functions near the surface and relate their evolution as a function of the distance, d, to the Wigner-von-Neumann non-crossing rule. The distance dependence of the resonance parameters can be analyzed in terms of semiclassical mechanics.

引用

页码：336 / 341

页数：6

共 17 条

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