Magnetic ground state and spin waves in A(A = K, Rb or Cs)Fe1.5Se2

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	Magnetic ground state and spin waves in A(A = K, Rb or Cs)Fe1.5Se2
	Lu, F ; Wang, WH
刊名	PHYSICS LETTERS A
	2011
卷号	375 期号:47 页码:4203
关键词	SUPERCONDUCTIVITY INSULATOR
ISSN号	0375-9601
通讯作者	Lu, F: Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	We present theoretical results on the ground state phase diagram, spin waves and dynamic structure factor on the J(1)-J(2) model. In the reasonable physical parameter region corresponding to AFe(1.5)Se(2), the A-collinear antiferromagnetic phase is stable. The spin wave spectra have two acoustic branches and four optical branches for this phase on the rhombus-ordered vacancy lattice, and each of them is twofold degenerate. However, they have one nondegenerate acoustic branch and two nondegenerate optical branches on the square-ordered vacancy lattice. To offer the theoretical guidance for the further experiments, we also discuss the magnetic excitation spectra and the inelastic neutron scattering pattern based on linear spin wave theory. (C) 2011 Elsevier B.V. All rights reserved.
收录类别	SCI
资助信息	China Postdoctoral Science Foundation [20100470589]; NSFC of China [11047162, 11104148]; Ministry of Education of China [20100031120035]; Fundamental Research Funds for the Central Universities
语种	英语
公开日期	2013-09-18
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/41233]
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	Lu, F,Wang, WH. Magnetic ground state and spin waves in A(A = K, Rb or Cs)Fe1.5Se2[J]. PHYSICS LETTERS A,2011,375(47):4203.
APA	Lu, F,&Wang, WH.(2011).Magnetic ground state and spin waves in A(A = K, Rb or Cs)Fe1.5Se2.PHYSICS LETTERS A,375(47),4203.
MLA	Lu, F,et al."Magnetic ground state and spin waves in A(A = K, Rb or Cs)Fe1.5Se2".PHYSICS LETTERS A 375.47(2011):4203.