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ADSORPTION OF LI (K) ON THE SI(001)-(2X1) SURFACE - SCANNING-TUNNELING-MICROSCOPY STUDY

被引：78
作者：
HASEGAWA, Y
KAMIYA, I
HASHIZUME, T
SAKURAI, T
TOCHIHARA, H
KUBOTA, M
MURATA, Y
机构：
[1] Scanning Tunneling Microscopy Group, Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo 106
[2] Institute for Solid State Physics, University of Tokyo, Minato-ku, Tokyo 106
来源：
PHYSICAL REVIEW B | 1990年 / 41卷 / 14期
关键词：
D O I：
10.1103/PhysRevB.41.9688
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Li and K adsorption on the Si(001)-(2×1) surface have been investigated by use of scanning tunneling microscopy (STM). We found that, at the initial stage of adsorption, Li (K) atoms (1) adsorb on top of one of the dimer-forming Si atoms to form covalentlike directional bonds with Si atoms and tend to stabilize asymmetric (buckled) dimerization, and (2) form linear chains, perpendicular to the substrate dimer rows. Our STM results are significantly different from the conclusions of earlier reports. © 1990 The American Physical Society.
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页码：9688 / 9691
页数：4
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