The exchange biaslike effect in tetrahedral spinels Cu1-xZnxCr2O4(x=0.1,0.3)

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	The exchange biaslike effect in tetrahedral spinels Cu1-xZnxCr2O4(x=0.1,0.3)
	Yan, LQ ; Ren, W ; Shen, J ; Sun, ZH ; Wang, FW
刊名	JOURNAL OF APPLIED PHYSICS
	2009
卷号	105 期号:7
关键词	NANOPARTICLES LA1-XSRXCOO3 BILAYERS GLASS
ISSN号	0021-8979
通讯作者	Yan, LQ (reprint author), Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	The magnetic properties and magnetocaloric effect of amorphous alloys Ce2Fe23-xMnxB3 (1 <= x <= 6) were investigated. The magnetic properties are sensitive to the composition. For samples with x <= 3, the low fraction and isolated Fe-Mn antiferromagnetic (AFM) coupling simply align antiparallel to the majority ferromagnetic (FM) order and reduce the total magnetization but cause no noncollinearity; thus they are typical FM materials with T-C decreasing drastically from 336 to 226 K and the magnetization has a sharp drop around respective T-C without thermal hysteresis suggesting a second order phase transition resulting from their amorphous nature. For x=4 and 5, amorphous alloys Ce2Fe23-xMnxB3 experience two transitions: first a paramagnetic (PM)-FM second transition at 143 and 81 K, respectively, and then a FM-spin glass (SG) transition. A PM-SG transition occurs at the freezing temperature (T-f) about 28.2 K for x=6. The SG behavior in amorphous alloy Ce2Fe23-xMnxB3 can be attributed to the disordered structure resulting from their amorphous nature and the competition between the Fe-Fe FM coupling and Fe-Mn AFM negative coupling. The magnetic entropy change for alloys Ce2Fe23-xMnxB3 with x <= 3 is calculated using the Maxwell relation. (c) 2009 American Institute of Physics. [DOI: 10.1063/1.3072031]
收录类别	SCI
语种	英语
公开日期	2013-09-23
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/45141]
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	Yan, LQ,Ren, W,Shen, J,et al. The exchange biaslike effect in tetrahedral spinels Cu1-xZnxCr2O4(x=0.1,0.3)[J]. JOURNAL OF APPLIED PHYSICS,2009,105(7).
APA	Yan, LQ,Ren, W,Shen, J,Sun, ZH,&Wang, FW.(2009).The exchange biaslike effect in tetrahedral spinels Cu1-xZnxCr2O4(x=0.1,0.3).JOURNAL OF APPLIED PHYSICS,105(7).
MLA	Yan, LQ,et al."The exchange biaslike effect in tetrahedral spinels Cu1-xZnxCr2O4(x=0.1,0.3)".JOURNAL OF APPLIED PHYSICS 105.7(2009).