Cluster spin-glass behavior in Ni2In-type Mn-Cu-Ga alloys

doi:10.1016/j.jallcom.2019.152678

CORC > 金属研究所 > 中国科学院金属研究所

	Cluster spin-glass behavior in Ni2In-type Mn-Cu-Ga alloys
	Xiao, Xiaofei 1,2; Zhao, Xinguo 1,2; Guo, Jie 1,2; Liu, Wei 1,2; Zhang, Zhidong 1,2
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2020-03-05
卷号	816 页码:5
关键词	Spin glasses Magnetization Susceptibility Magnetic aging effect Magnetic memory effect
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2019.152678
通讯作者	Zhao, Xinguo(xgzhao@imr.ac.cn)
英文摘要	We report the structural and magnetic properties of Ni2In-type (Mn0.25Cu0.25)(66)Ga-34 alloy by using powder X-ray diffraction, DC- and AC-susceptibility, aging effect and magnetic memory effect measurements. From the results of the DC-susceptibility measurements, an irreversible temperature Tirr(0) = 109.1 +/- 1.4 K and a crossover exponent Phi = 4.9 +/- 0.3 are obtained, which indicate that our system favors a canonical Heisenberg spin-glass state. From the AC-susceptibility results, the shift of freezing temperature with frequency is characterized by a medium Mydosh parameter of 0.03. Furthermore, a relaxation time of the spin flip tau(0) = 1.1 x 10(-9) s and a critical exponent zv = 7.5 are obtained by the fitting of power law. A significant aging effect and a magnetic memory effect in both zero-field-cooled and field-cooled protocols are observed. In addition, the memory effect existing in a negative T cycle but missing in a positive T cycle favors the hierarchical model in our sample. All the above observations render a cluster spin-glass behavior in (Mn0.25Cu0.25)(66)Ga-34 alloy. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[51571194] ; National Natural Science Foundation of China[51771197] ; National Key Research and Development Program of China[2016YFB0700901] ; Chinese Academy of Sciences[KJZD-EW-M05]
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000503725300018
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China ; Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/136253]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhao, Xinguo
作者单位	1.Chinese Acad Sci, Shenyang Natl Lab Mat Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Liaoning, Peoples R China
推荐引用方式 GB/T 7714	Xiao, Xiaofei,Zhao, Xinguo,Guo, Jie,et al. Cluster spin-glass behavior in Ni2In-type Mn-Cu-Ga alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2020,816:5.
APA	Xiao, Xiaofei,Zhao, Xinguo,Guo, Jie,Liu, Wei,&Zhang, Zhidong.(2020).Cluster spin-glass behavior in Ni2In-type Mn-Cu-Ga alloys.JOURNAL OF ALLOYS AND COMPOUNDS,816,5.
MLA	Xiao, Xiaofei,et al."Cluster spin-glass behavior in Ni2In-type Mn-Cu-Ga alloys".JOURNAL OF ALLOYS AND COMPOUNDS 816(2020):5.