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[41]
ZELDOVICH YB, 1966, PHYSICS SHOCK WAVES, V1
HIGH-ENERGY CLUSTER SURFACE COLLISIONS
被引：83
作者：
EVEN, U
SCHEK, I
JORTNER, J
机构：
[1] School of Chemistry, Tel-Aviv University, Ramat Aviv
关键词：
D O I：
10.1016/0009-2614(93)85282-S
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：
Molecular dynamics simulations of high-energy collisions (initial kinetic energies E(k)0 = 10-10(6) eV) of Kr(n) (n = 8-512) clusters with a rigid Pt surface provide a microscopic description of the formation of an intracluster shock wave (temperatures up to 3 x 10(5) K and cluster internal potential energies up to approximately 10(4) eV) on a time scale of 10-500 fs, which is accompanied by novel ultrafast energy acquisition processes. High-energy ((10(-5)) x 10(3) eV) high-yield (0.5%-10%) interatomic Kr-Kr pair repulsive excitation is exhibited, being manifested in outer-shell electronic excitations and ionization, multiple ionization and Auger processes.
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页码：303 / 307
页数：5
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