First-order transition in trigonal structure CaMn2P2

doi:10.1209/0295-5075/132/46001

	First-order transition in trigonal structure CaMn2P2
	Li, Y. J.1,2,3; Jin, F.1,2,3; Mi, Z. Y.1,2,3; Guo, J.1,2,3; Wu, W.1,2,3; Yu, Z. H.4; Wu, D. S.1,2,3; Na, S. H.1,2,3; Mu, C.1,2,3; Zhou, X. B.1,2; Li, Z.1,2,3; Liu, K.5,6; Sun, L. L.1,2,3,7; Zhang, Q. M.1,2,8; Xiang, T.1,2,3,9; Li, G.1,2,3,7; Luo, J. L.1,2,3,7
	2020-11
发表期刊	EPL
ISSN	0295-5075
EISSN	1286-4854
卷号	132 期号:4 页码:#VALUE!
DOI	10.1209/0295-5075/132/46001
摘要	We report structural and physical properties of the single crystalline . The X-ray diffraction (XRD) results show that adopts the trigonal -type structure. Temperature-dependent electrical resistivity measurements indicate an insulating ground state for with activation energies of 40 meV and 0.64 meV for two distinct regions, respectively. Magnetization measurements show no apparent magnetic phase transition under 400 K. Different from other , Sr, and Ba, and , As, and Sb) compounds with the same structure, heat capacity and reveal that has a first-order transition at and the transition temperature shifts to high temperature upon increasing pressure. The emergence of plenty of new Raman modes below the transition, clearly suggests a change in symmetry accompanying the transition. The combination of the structural, transport, thermal and magnetic measurements points to an unusual origin of the transition.
关键词	61 50 Ks 72 20 -i 74 10 +v
URL	查看原文
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Physics
WOS类目	Physics, Multidisciplinary
WOS记录号	WOS:000614618700001
出版者	IOP PUBLISHING LTD
原始文献类型	Article
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/125980
专题	物质科学与技术学院
通讯作者	Luo, J. L.
作者单位	1.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China; 2.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China; 3.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100190, Peoples R China; 4.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China; 5.Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China; 6.Renmin Univ China, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China; 7.Songshan Lake Mat Lab, Dongguan 523808, Guangdong, Peoples R China; 8.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China; 9.Kavli Inst Theoret Sci, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Li, Y. J.,Jin, F.,Mi, Z. Y.,et al. First-order transition in trigonal structure CaMn2P2[J]. EPL,2020,132(4):#VALUE!.
APA	Li, Y. J..,Jin, F..,Mi, Z. Y..,Guo, J..,Wu, W..,...&Luo, J. L..(2020).First-order transition in trigonal structure CaMn2P2.EPL,132(4),#VALUE!.
MLA	Li, Y. J.,et al."First-order transition in trigonal structure CaMn2P2".EPL 132.4(2020):#VALUE!.