Phase transition and critical behavior of spin-orbital coupled spinel ZnV2O4

doi:10.1088/1674-1056/25/1/016802

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	Phase transition and critical behavior of spin-orbital coupled spinel ZnV2O4
	Wang, Li 1,2; Wang, Rong-juan 1,2; Zhu, Yuan-yuan 3; Lu, Zhi-hong 4; Xiong, Rui 1,2; Liu, Yong1,2 ; Shi, Jing 1,2
	2016
发表期刊	CHINESE PHYSICS B
摘要	We present the temperature-dependent susceptibility and specific heat measurement of spinel ZnV2O4. The structural transition with orbital ordering and the antiferromagnetic transition with spin ordering were observed at 50 K and 37 K, respectively. By analysis of the hysteresis behavior between the specific heat curves obtained in warming and cooling processes, the structural transition was confirmed to be the first-order transition, while the antiferromagnetic transition was found to be of the second-order type. At the structural transition, the latent heat and entropy change were calculated from the excess specific heat, and the derivative of pressure with respect to temperature was obtained using the Clausius-Clapayron equation. At the magnetic transition, the width of the critical fluctuation region was obtained to be about 0.5 K by comparing with Gaussian fluctuations. In the critical region, the critical behavior was analyzed by using renormalization-group theory. The critical amplitude ratio A(+)/A(-) = 1.46, which deviates from the 3D Heisenburg model; while the critical exponent alpha is -0.011, which is close to the 3D XY model. We proposed that these abnormal critical behaviors can be attributed to strong spin-orbital coupling accompanied with the antiferromagnetic transition. Moreover, in the low temperature range (2-5 K), the Fermi energy, the density of states near the Fermi surface, and the low limit of Debye temperature were estimated to be 2.42 eV, 2.48 eV(-1), and 240 K, respectively.
文章类型	Article
关键词	Spinel Compounds Specific Heat Phase Transition Critical Behavior
WOS标题词	Science & Technology ; Physical Sciences
DOI	10.1088/1674-1056/25/1/016802
关键词[WOS]	HYDROGEN STORAGE PROPERTIES ; MAGNETIC-PROPERTIES ; HEAT ; SUSCEPTIBILITY
收录类别	SCI
语种	英语
项目资助者	National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Basic Research Program of China(2012CB821404) ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Natural Science Foundation of China(51172166 ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; National Science Fund for Talent Training in Basic Science, China(J1210061) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; Doctoral Fund of Ministry of Education of China(20110141110007) ; 61106005) ; 61106005) ; 61106005) ; 61106005) ; 61106005) ; 61106005) ; 61106005) ; 61106005)
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000368455100063
引用统计	被引频次：8[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.hfcas.ac.cn:8080/handle/334002/22263
专题	中科院强磁场科学中心
作者单位	1.Wuhan Univ, Key Lab Artificial Micro & Nanostruct, Minist Educ, Wuhan 430072, Peoples R China 2.Wuhan Univ, Sch Phys & Technol, Wuhan 430072, Peoples R China 3.Chinese Acad Sci, High Field Magnet Lab, Hefei 230031, Peoples R China 4.Wuhan Univ Sci & Technol, Sch Met & Mat, Wuhan 430081, Peoples R China
推荐引用方式 GB/T 7714	Wang, Li,Wang, Rong-juan,Zhu, Yuan-yuan,et al. Phase transition and critical behavior of spin-orbital coupled spinel ZnV2O4[J]. CHINESE PHYSICS B,2016,25(1):1-6.
APA	Wang, Li.,Wang, Rong-juan.,Zhu, Yuan-yuan.,Lu, Zhi-hong.,Xiong, Rui.,...&Shi, Jing.(2016).Phase transition and critical behavior of spin-orbital coupled spinel ZnV2O4.CHINESE PHYSICS B,25(1),1-6.
MLA	Wang, Li,et al."Phase transition and critical behavior of spin-orbital coupled spinel ZnV2O4".CHINESE PHYSICS B 25.1(2016):1-6.

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