Evolution of spin phonon coupling by substituting Cd for Zn in the frustrated spinel ZnCr2Se4

doi:10.1063/1.4943762

CORC > 合肥物质科学研究院 > 中国科学院合肥物质科学研究院 > 中科院强磁场科学中心

	Evolution of spin phonon coupling by substituting Cd for Zn in the frustrated spinel ZnCr2Se4
	Chen, Xuliang1,2 ; Yang, Zhaorong 1,2,3
刊名	AIP ADVANCES
	2016-05-01
卷号	6 期号:5 页码:1-7
DOI	10.1063/1.4943762
文献子类	Article
英文摘要	Frustration makes a tremendous amount of degenerate ground states which provides no energy scale of its own. Any perturbation has to be considered strong and fascinating phenomena may be emergent upon relieving of frustration. Here, we report the evolution of spin phonon coupling in the frustrated spinel system Zn1-xCdxCr2Se4 (0 <= x <= 1) from magnetization, specific heat and thermal conductivity. Our results give clear evidences that the spin-orientated structural transitions decay rapidly as x going from 0 to 0.4 while the correlations between spin and lattice degrees of freedom for 0.6 <= x <= 1 become weak and can be explained in terms of the traditional magnetostriction effect. In addition, for 0 <= x <= 0.4 thermal carriers reveal strong scattering from spin fluctuations in the vicinity of T-N owing to strong frustration, in stark contrast with those for 0.6 <= x <= 1 where traditional phonon-like heat conduction behaviors are observed. Moreover, it is shown that a moderate applied magnetic field can drive readily the fluctuations-scattered thermal conductivity toward traditional phonon-like one as observed in CdCr2Se4, reaching about 30% for x = 0.4 at 25 K in 1 T. Such strong field-sensitive effects may introduce new promising functionalities for potential applications. (C) 2016 Author(s).
WOS关键词	THERMAL-CONDUCTIVITY ; MAGNETIC PROPERTIES ; PHASE-DIAGRAM ; SCATTERING
WOS研究方向	Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
WOS记录号	WOS:000377962500237
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/22444]
专题	合肥物质科学研究院_中科院强磁场科学中心
作者单位	1.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 2.Chinese Acad Sci, Inst Solid State Phys, Key Lab Mat Phys, Hefei 230031, Peoples R China 3.Nanjing Univ, Collaborat Innovat Ctr Adv Microstruct, Nanjing 210093, Jiangsu, Peoples R China
推荐引用方式 GB/T 7714	Chen, Xuliang,Yang, Zhaorong. Evolution of spin phonon coupling by substituting Cd for Zn in the frustrated spinel ZnCr2Se4[J]. AIP ADVANCES,2016,6(5):1-7.
APA	Chen, Xuliang,&Yang, Zhaorong.(2016).Evolution of spin phonon coupling by substituting Cd for Zn in the frustrated spinel ZnCr2Se4.AIP ADVANCES,6(5),1-7.
MLA	Chen, Xuliang,et al."Evolution of spin phonon coupling by substituting Cd for Zn in the frustrated spinel ZnCr2Se4".AIP ADVANCES 6.5(2016):1-7.