Synthesis, structure, magnetism and specific heat of YCrO4 and its zircon-to-scheelite phase transition

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	Synthesis, structure, magnetism and specific heat of YCrO4 and its zircon-to-scheelite phase transition
	Long, YW ; Yang, LX ; Yu, Y ; Li, FY ; Yu, RC ; Jin, CQ
刊名	PHYSICAL REVIEW B
	2007
卷号	75 期号:10
关键词	UBER DIE CHROMATE(V) SELTENEN ERDEN HIGH-PRESSURE TRANSFORMATION NANOCRYSTALS LAPO4-CE PARTICLES VANADATE DYVO4 OXIDE TB
ISSN号	1098-0121
通讯作者	Long, YW (reprint author), Chinese Acad Sci, Inst Phys, Natl Lab Condensed Matter Phys, POB 603, Beijing 100080, Peoples R China.
中文摘要	The scheelite-type YCrO4 with space group I4(1)/a was synthesized at 6.0 GPa and 450 degrees C from its ambient-pressure zircon-type phase in I4(1)/amd symmetry. Accompanying the structural phase transition from zircon to scheelite, magnetic and specific heat properties are changed drastically. In magnetism, YCrO4 will transform from being ferromagnetic with Curie temperature of about 9 K for the zircon phase to being antiferromagnetic with Neel temperature of 21 K for the scheelite phase. The magnetic superexchange interactions are rather weak due to the poor d-band orbital overlap. Corresponding to the magnetic transition, a lambda-type anomaly in specific heat is observed in the zircon- and scheelite-type YCrO4, respectively. Calculations show that the magnetic entropy changes in experiment are less than those in theory in both of the phases, especially for the scheelite phase.
收录类别	SCI
语种	英语
公开日期	2013-09-24
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/54496]
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	Long, YW,Yang, LX,Yu, Y,et al. Synthesis, structure, magnetism and specific heat of YCrO4 and its zircon-to-scheelite phase transition[J]. PHYSICAL REVIEW B,2007,75(10).
APA	Long, YW,Yang, LX,Yu, Y,Li, FY,Yu, RC,&Jin, CQ.(2007).Synthesis, structure, magnetism and specific heat of YCrO4 and its zircon-to-scheelite phase transition.PHYSICAL REVIEW B,75(10).
MLA	Long, YW,et al."Synthesis, structure, magnetism and specific heat of YCrO4 and its zircon-to-scheelite phase transition".PHYSICAL REVIEW B 75.10(2007).