Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2

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	Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2
	Wang, MY ; Li, CH ; Abernathy, DL ; Song, Y ; Carr, SV ; Lu, XY ; Li, SL ; Yamani, Z ; Hu, JP ; Xiang, T ; Dai, PC
刊名	PHYSICAL REVIEW B
	2012
卷号	86 期号:2
关键词	HIGH-TEMPERATURE SUPERCONDUCTIVITY MAGNETIC ORDER TRANSITION STRIPES WAVES
ISSN号	1098-0121
通讯作者	Wang, MY (reprint author), Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA.
中文摘要	We use inelastic neutron scattering to show that superconducting (SC) rubidium iron selenide Rb0.82Fe1.68Se2 exhibits antiferromagnetic (AF) spin excitations near the in-plane wave vector Q = (pi, 0) identical to that for iron arsenide superconductors. Moreover, we find that these excitations change from incommensurate to commensurate with increasing energy and occur at the expense of spin waves associated with the coexisting root 5 x root 5 block AF phase. Since these spin excitations cannot come from Fermi surface nesting based on angle resolved photoemission experiments, our results indicate the presence of local moments in SC Rb0.82Fe1.68Se2 that may have a similar origin as the hourglass-like spin excitations in copper oxide superconductors.
收录类别	SCI
资助信息	MOST of China 973 program [2012CB821400]; [US NSF-DMR-1063866]; [NSF-OISE-0968226]; [NSFC-51002180]
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/311004/49817]
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	Wang, MY,Li, CH,Abernathy, DL,et al. Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2[J]. PHYSICAL REVIEW B,2012,86(2).
APA	Wang, MY.,Li, CH.,Abernathy, DL.,Song, Y.,Carr, SV.,...&Dai, PC.(2012).Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2.PHYSICAL REVIEW B,86(2).
MLA	Wang, MY,et al."Neutron scattering studies of spin excitations in superconducting Rb0.82Fe1.68Se2".PHYSICAL REVIEW B 86.2(2012).