Strong ferromagnetic exchange interaction under ambient pressure in BaFe2S3

doi:10.1103/PhysRevB.95.060502

	Strong ferromagnetic exchange interaction under ambient pressure in BaFe2S3
	Sun, HL; Yao, DX; Lee, DH; Zhang, WL; Bourret-Courchesne, E; Jiang, HC; Song, Y; Yi, M; Birgeneau, RJ; Sun HL(孙华蕾)
刊名	PHYSICAL REVIEW B
	2017
卷号	95 期号:6 页码:60502
ISSN号	2469-9950
DOI	10.1103/PhysRevB.95.060502
文献子类	Article
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.
电子版国际标准刊号	2469-9969
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
语种	英语
WOS记录号	WOS:000396095500002
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/284905]
专题	高能物理研究所_多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Sun, HL,Yao, DX,Lee, DH,et al. Strong ferromagnetic exchange interaction under ambient pressure in BaFe2S3[J]. PHYSICAL REVIEW B,2017,95(6):60502.
APA	Sun, HL.,Yao, DX.,Lee, DH.,Zhang, WL.,Bourret-Courchesne, E.,...&Luo, HQ.(2017).Strong ferromagnetic exchange interaction under ambient pressure in BaFe2S3.PHYSICAL REVIEW B,95(6),60502.
MLA	Sun, HL,et al."Strong ferromagnetic exchange interaction under ambient pressure in BaFe2S3".PHYSICAL REVIEW B 95.6(2017):60502.