Strong ferromagnetic exchange interaction under ambient pressure in bafe2s3
文献类型：期刊论文
| 作者 | 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
 |
| 出版日期 | 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 |
| WOS记录号 | WOS:000396095500002 |
| 出版者 | AMER PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.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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