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	Strong ferromagnetic exchange interaction under ambient pressure in bafe2s3
	Wang, Meng1,2; Jin, S. J.2; Yi, Ming1; Song, Yu3; Jiang, H. C.4,5; Zhang, W. L.6; Sun, H. L.7; Luo, H. Q.6; Christianson, A. D.8; Bourret-Courchesne, E.9
刊名	Physical review b
	2017-02-03
卷号	95期号:6页码:6
ISSN号	2469-9950
DOI	10.1103/physrevb.95.060502
通讯作者	Wang, meng(wangmeng5@mail.sysu.edu.cn)
英文摘要	Inelastic neutron scattering measurements have been performed to investigate the spin waves of the quasione- dimensional antiferromagnetic ladder compound bafe2s3, where a superconducting transition was observed under pressure [h. takahashi et al., nat. mater. 14, 1008 (2015); t. yamauchi et al., phys. rev. lett. 115, 246402 (2015)]. by fitting the spherically averaged experimental data collected on a powder sample to a heisenberg hamiltonian, we find that the one-dimensional antiferromagnetic ladder exhibits a strong nearest-neighbor ferromagnetic exchange interaction (sjr = -71 +/- 4mev) along the rung direction, an antiferromagnetic sj(l) = 49 +/- 3 mev along the leg direction, and a ferromagnetic sj(2) = -15 +/- 2 mev along the diagonal direction. our data demonstrate that the antiferromagnetic spin excitations are a common characteristic for the iron-based superconductors, while specific relative values for the exchange interactions do not appear to be unique for the parent states of the superconducting materials.
WOS关键词	HIGH-TEMPERATURE SUPERCONDUCTIVITY ; BA-FE-S ; IRON PNICTIDES ; SPIN DYNAMICS ; PHASES ; LADDER ; CHALCOGENIDES ; WAVES ; STATE
WOS研究方向	Physics
WOS类目	Physics, Condensed Matter
语种	英语
出版者	AMER PHYSICAL SOC
WOS记录号	WOS:000396095500002
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2176783
专题	高能物理研究所
通讯作者	Wang, Meng
作者单位	1.Univ Calif Berkeley, Dept Phys, Berkeley, CA 94720 USA 2.Sun Yat Sen Univ, Sch Phys, Guangzhou 510275, Guangdong, Peoples R China 3.Rice Univ, Dept Phys & Astron, Houston, TX 77005 USA 4.SLAC Natl Accelerator Lab, Stanford Inst Mat & Energy Sci, Menlo Pk, CA 94025 USA 5.Stanford Univ, Menlo Pk, CA 94025 USA 6.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Inst Phys, Beijing 100190, Peoples R China 7.Chinese Acad Sci, Beijing Synchrotron Radiat Facil, Inst High Energy Phys, Beijing 100049, Peoples R China 8.Oak Ridge Natl Lab, Quantum Condensed Matter Div, Oak Ridge, TN 37831 USA 9.Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720 USA 10.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
推荐引用方式 GB/T 7714	Wang, Meng,Jin, S. J.,Yi, Ming,et al. Strong ferromagnetic exchange interaction under ambient pressure in bafe2s3[J]. Physical review b,2017,95(6):6.
APA	Wang, Meng.,Jin, S. J..,Yi, Ming.,Song, Yu.,Jiang, H. C..,...&Birgeneau, R. J..(2017).Strong ferromagnetic exchange interaction under ambient pressure in bafe2s3.Physical review b,95(6),6.
MLA	Wang, Meng,et al."Strong ferromagnetic exchange interaction under ambient pressure in bafe2s3".Physical review b 95.6(2017):6.

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