Atomic row doubling in the STM images of Cu(014)-O obtained with MnNi tips

被引：15

作者：

Chaika, A. N. ^{[1
]}

Semenov, V. N.

Nazin, S. S.

Bozhko, S. I.

Murphy, S.

Radican, K.

Shvets, I. V.

机构：

[1] Russian Acad Sci, Inst Solid State Phys, Chernogolovka 142432, Moscow District, Russia

[2] NT MDT, Moscow 124460, Russia

[3] Univ Dublin Trinity Coll, Sch Phys, CRANN, Dublin 2, Ireland

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 98卷 / 20期

关键词：

D O I：

10.1103/PhysRevLett.98.206101

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on scanning tunneling microscopy studies of the Cu(014)-O surface using MnNi tips. Remarkably, the results show a regular apparent doubling of surface atomic rows in the {110} direction. A qualitative explanation of this feature based on tight binding and density functional theory calculations of the electronic structure of the tip is presented. Double imaging of the same atom by different legs of d(yz) orbital could be the reason for the observed doubling. The orientation of the orbital is determined by the O-Mn crystal field.

引用

页数：4

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