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题名: A convenient way of determining the ferromagnetic transition temperature of metallic (Ga,Mn)As
作者: Jiang CP;  Zhao JH;  Deng JJ;  Yang FH;  Niu ZC;  Wu XG;  Zheng HZ
发表日期: 2005
摘要: We have studied magnetic and transport properties of insulating and metallic (Ga,Mn)As layers before and after annealing. A dramatic increase of the ferromagnetic transition temperature T-C by postgrowth annealing has been realized in both insulating and metallic (Ga,Mn)As. The as-grown insulating (Ga,Mn)As can be turned into metallic by the low-temperature annealing. For all the metallic (Ga,Mn)As, a characteristic feature in the temperature dependence of sheet resistance appears around T-C. This phenomenon may provide a simple and more convenient method to determine the T-C of metallic (Ga,Mn)As compared with superconducting quantum interference device (SQUID) measurement. Moreover, the T-C of the metallic (Ga,Mn)As obtained by this way is in good agreement with that measured by a SQUID magnetometer. (C) 2005 American Institute of Physics.
KOS主题词: Curie temperature
刊名: JOURNAL OF APPLIED PHYSICS
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:
Jiang, CP; Zhao, JH; Deng, JJ; Yang, FH; Niu, ZC; Wu, XG; Zheng, HZ .A convenient way of determining the ferromagnetic transition temperature of metallic (Ga,Mn)As ,JOURNAL OF APPLIED PHYSICS,MAR 15 2005,97 (6):Art.No.063908
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