Clusters and magnetism in epitaxial Co-doped TiO2 anatase

被引：195

作者：

Chambers, SA ^{[1
]}

Droubay, T

Wang, CM

Lea, AS

Farrow, RFC

Folks, L

Deline, V

Anders, S

机构：

[1] Pacific NW Natl Lab, Fundamental Sci Div, Richland, WA 99352 USA

[2] IBM Corp, Almaden Res Ctr, San Jose, CA 95120 USA

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 08期

关键词：

D O I：

10.1063/1.1556173

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We show that under certain conditions, highly Co-enriched TiO2 anatase clusters nucleate on epitaxial TiO2 anatase grown on LaAlO3(001) by oxygen plasma assisted molecular beam epitaxy. In the most extreme cases, virtually all incident Co segregates to the clusters, yielding a nanoscale ferromagnetic phase that is not ferromagnetic in homogeneous films of the same Co concentration. The nucleation of this phase simultaneous with continuous epitaxial film growth must be carefully monitored in order to avoid drawing false conclusions about the film structure. (C) 2003 American Institute of Physics.

引用

页码：1257 / 1259

页数：3

共 9 条

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