MAGNETIC PROPERTIES OF Mn-DOPED ZnO NANOWIRES

被引:1
|
作者
Granovsky, S. A. [1 ]
Gaidukova, I. Yu [1 ]
Markosyan, A. S. [2 ]
Lu, Jia G. [3 ]
Chien, C. J. [3 ]
Doerr, M. [4 ]
Papageorgiou, T. [5 ]
Wosnitza, J. [5 ]
机构
[1] MV Lomonossov Moscow State Univ, GSP 1 Leninskie Gory, Moscow 119991, Russia
[2] SCCMP, Moscow 119991, Russia
[3] Univ Southern, Dept Chem Engn & Mat Sci, Irvine, CA 92697 USA
[4] Tech Univ Dresden, Inst Festkorperphys, D-01062 Dresden, Germany
[5] Hochfeld Magnetlab, Forschungszentrum Dresden Rossendorf, D-01314 Dresden, Germany
来源
MAGNETISM AND MAGNETIC MATERIALS | 2009年 / 152-153卷
关键词
Mn-doped ZnO nanowires; diluted magnetic semiconductors; FERROMAGNETISM;
D O I
10.4028/www.scientific.net/SSP.152-153.303
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
Structural, magnetic and transport properties of undoped and Mn-doped quasi one-dimensional ZnO nano-wires formed as dendrite crystals of different width have been studied. All Mn-doped nanowires (Mn content 16% and 27%) exhibit a ferromagnetic behavior, which is significantly temperature dependent. A small magnetic signal detected up to the room temperature is supposed to be due to small amounts of magnetic impurities. Analysis of the temperature dependencies of magnetization shows that the observed magnetic properties can be caused by the host ferromagnetic matrix with Curie temperature T-C approximate to 40 K.
引用
收藏
页码:303 / +
页数:2
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