Slow highly charged ion induced nanopit formation on the KCl(001) surface

被引：9
|
作者：
Wilhelm, R. A. [1 ]
Heller, R. [1 ]
Facsko, S. [1 ]
机构：
[1] Helmholtz Zentrum Dresden Rossendorf, Inst Ion Beam Phys & Mat Res, Bautzner Landstr 400, D-01328 Dresden, Germany
来源：
EPL | 2016年 / 115卷 / 04期
关键词：
CLEAN GOLD SURFACE; HILLOCK FORMATION; ALKALI-HALIDES; BARRIER MODEL; HOLLOW ATOMS; NEUTRALIZATION; DESORPTION; SOLIDS; IMPACT; FRONT;
D O I：
10.1209/0295-5075/115/43001
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We report on nanostructuring of the KCl(001) surface induced by the individual impact of slow highly charged ions. Samples were irradiated with Xe ions with charge states of Q = 15 to 40 at kinetic energies from 1.7 to 160 keV. The formation of nanopits at the virgin surface is observed and attributed to a defect-mediated desorption process involving the removal of up to 2000 surface atoms per incident ion. The depth of the produced pits is shallow, but not limited to the first monolayer. From the variation of the ion parameters (charge state and kinetic energy) we derive a phase diagram for the structuring of the KCl(001) surface with highly charged ions. Copyright (C) EPLA, 2016
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页数：6
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