One-dimensional Gd-induced chain structures on Si(111) surfaces

被引:44
作者
Kirakosian, A
McChesney, JL
Bennewitz, R
Crain, JN
Lin, JL
Himpsel, FJ
机构
[1] Univ Wisconsin, Dept Phys, Madison, WI 53706 USA
[2] Univ Basel, Dept Phys & Astron, CH-4056 Basel, Switzerland
基金
美国国家科学基金会;
关键词
scanning tunneling microscopy; scanning tunneling spectroscopies; angle resolved photoemission; surface electronic phenomena (work function; surface potential; surface states; etc.); surface relaxation and reconstruction; surface structure; morphology; roughness; and topography;
D O I
10.1016/S0039-6028(01)01806-4
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
A one-dimensional 5 x 2 reconstruction of Gd is observed on Si(111), which can be stabilized in single domain form on vicinal surfaces. It contains zig-zag rows of occupied orbitals alternating with rows of unoccupied orbitals, as inferred from spectroscopic scanning tunneling microscopy. The large magnetic moment of the Gd4f electrons creates atomic chains with a magnetic coupling. (C) 2001 Published by Elsevier Science B.V.
引用
收藏
页码:L109 / L112
页数:4
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