Nanotemplate with holes:: Ultrathin alumina on Ni3Al(111)

被引：108

作者：

Schmid, M.

Kresse, G.

Buchsbaum, A.

Napetschnig, E.

Gritschneder, S. ^{[1
]}

Reichling, M.

Varga, P.

机构：

[1] Vienna Univ Technol, Inst Allgemeine Phys, A-1040 Vienna, Austria

[2] Univ Vienna, Fac Phys, A-1090 Vienna, Austria

[3] Univ Vienna, Ctr Computat Mat Sci, A-1090 Vienna, Austria

[4] Univ Osnabruck, Fachbereich Phys, D-49076 Osnabruck, Germany

来源：

PHYSICAL REVIEW LETTERS | 2007年 / 99卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.99.196104

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have determined the structure of the ultrathin (root 67 x root 67)R12.2 degrees aluminum oxide on Ni3Al(111) by a combination of scanning tunneling microscopy and density functional theory. In addition to other local defects, the main structural feature of the unit cell is a 0.4-nm-diameter hole reaching down to the metal substrate. Understanding the structure and metal growth on this oxide allows us to use it as a template for growing highly regular arrays of nanoparticles.

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