Amorphous grain boundary layers in the ferromagnetic nanograined ZnO films

被引：92

作者：

Straumal, B. B. ^{[1
,2
,4
]}

Mazilkin, A. A. ^{[2
,3
]}

Protasova, S. G. ^{[2
,3
]}

Myatiev, A. A. ^{[1
]}

Straumal, P. B. ^{[1
,5
]}

Goering, E. ^{[3
]}

Baretzky, B. ^{[4
]}

机构：

[1] Natl Univ Sci & Technol, Moscow Inst Steel & Alloys MISiS, Moscow 119991, Russia

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

[3] Max Planck Inst Intelligente Syst, D-70569 Stuttgart, Germany

[4] Karlsruher Inst Technol, Inst Nanotechnol, D-76344 Eggenstein Leopoldshafen, Germany

[5] Univ Munster, Inst Mat Phys, D-48149 Munster, Germany

来源：

THIN SOLID FILMS | 2011年 / 520卷 / 04期

关键词：

ZnO; Grain boundaries; Ferromagnetism; Amorphous layers; ROOM-TEMPERATURE FERROMAGNETISM; MN-DOPED ZNO; INTERGRANULAR FILMS; MAGNETIC SEMICONDUCTORS; SOLID-PHASE; ZINC-OXIDE; THIN-FILMS; INTERFACES; PURE; SOLUBILITY;

D O I：

10.1016/j.tsf.2011.04.154

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pure ZnO thin films were obtained by the wet chemistry ("liquid ceramics") method from the butanoate precursors. Films consist of dense equiaxial nanograins and reveal ferromagnetic behaviour. The structure of the ZnO films was studied by the high-resolution transmission electron microscopy. The intergranular regions in the nanograined ZnO films obtained by the "liquid ceramics" method are amorphous. It looks like fine areas of the second amorphous phase which wets (covers) some of the ZnO/ZnO grain boundaries. Most probably these amorphous intergranular regions contain the defects which are responsible for the ferromagnetic behaviour. (C) 2011 Elsevier B. V. All rights reserved.

引用

页码：1192 / 1194

页数：3

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