High temperature annealing treatment on Co doped ZnO bulks

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	High temperature annealing treatment on Co doped ZnO bulks
	Peng, XD ; Zhu, T ; Wang, FW
刊名	ACTA PHYSICA SINICA
	2009
卷号	58 期号:5 页码:3274
关键词	DILUTED MAGNETIC SEMICONDUCTOR MAGNETORESISTANCE FERROMAGNETISM TRANSITION CONDUCTION TRANSPORT FILMS BAND
ISSN号	1000-3290
通讯作者	Zhu, T: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China.
中文摘要	In-situ high pressure X-ray diffraction experiments on Heusler-type ferromagnefic shape memory alloy Mn2NiGa under pressure up to 40 GPa have been carried out by using diamond anvil cell device with synchrotron radiation source, and magnetic measurements have also been performed on uninstalled samples by using vibration sample magnetometer. At ambient pressure Mn2NiGa has body centered cubic structure. Two phase transitions in Mn2NiGa were observed during high pressure experiments. The first at about 0.77 GPa is belong to martensitic transformation, and the second at about 20 GPa is isostructural transformation between two different martensites. Meanwhile, a lot of defects and distortion of lattice were generated in martensites due to pressurization. Consequently, coercive force of stress-induced martensites rises up to 204 kA/m and it is almost ten times larger than that of thermo-induced martensites. Pressure processes also make saturation magnetization of martensites decrease rapidly, which reveals the obvious defect effect.
收录类别	SCI
资助信息	National Natural Science Foundation of China [50871120]
语种	中文
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/39258]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Peng, XD,Zhu, T,Wang, FW. High temperature annealing treatment on Co doped ZnO bulks[J]. ACTA PHYSICA SINICA,2009,58(5):3274.
APA	Peng, XD,Zhu, T,&Wang, FW.(2009).High temperature annealing treatment on Co doped ZnO bulks.ACTA PHYSICA SINICA,58(5),3274.
MLA	Peng, XD,et al."High temperature annealing treatment on Co doped ZnO bulks".ACTA PHYSICA SINICA 58.5(2009):3274.