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题名: High and electric field tunable Curie temperature in diluted magnetic semiconductor nanowires and nanoslabs
作者: Zhang XW (Zhang Xiu-Wen);  Fan WJ (Fan Wei-Jun);  Zheng YH (Zheng Yu-Hong);  Li SS (Li Shu-Shen);  Xia JB (Xia Jian-Bai)
发表日期: 2007
摘要: The Curie temperature of diluted magnetic semiconductor (DMS) nanowires and nanoslabs is investigated using the mean-field model. The Curie temperature in DMS nanowires can be much larger than that in corresponding bulk material due to the density of states of one-dimensional quantum wires, and when only one conduction subband is filled, the Curie temperature is inversely proportional to the carrier density. The T-C in DMS nanoslabs is dependent on the carrier density through the number of the occupied subbands. A transverse electric field can change the DMS nanowires from the paramagnet to ferromagnet, or vice versae. (c) 2007 American Institute of Physics.
KOS主题词: room temperature
刊名: APPLIED PHYSICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Zhang, XW (Zhang, Xiu-Wen); Fan, WJ (Fan, Wei-Jun); Zheng, YH (Zheng, Yu-Hong); Li, SS (Li, Shu-Shen); Xia, JB (Xia, Jian-Bai) .High and electric field tunable Curie temperature in diluted magnetic semiconductor nanowires and nanoslabs ,APPLIED PHYSICS LETTERS,JUN 18 2007,90 (25):Art.No.253110
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