Camelback-shaped band reconciles heavy-electron behavior with weak electronic coulomb correlations in superconducting tlni2se2
文献类型：期刊论文
| 作者 | Xu, N.1,2; Matt, C. E.1,3; Richard, P.4,5,6; van Roekeghem, A.4,5,7; Biermann, S.7,8,9; Shi, X.1,4,5; Wu, S. -F.4,5; Liu, H. W.4,5; Chen, D.4,5; Qian, T.4,5 |
| 刊名 | Physical review b
 |
| 出版日期 | 2015-08-24 |
| 卷号 | 92期号:8页码:5 |
| ISSN号 | 1098-0121 |
| DOI | 10.1103/physrevb.92.081116 |
| 通讯作者 | Xu, n.(nan.xu@psi.ch) |
| 英文摘要 | Combining photoemission spectroscopy, raman spectroscopy, and first-principles calculations, we characterize superconducting tlni2se2 as a material with weak electronic coulomb correlations leading to a bandwidth renormalization of 1.4. we identify a camelback-shaped band, whose energetic position strongly depends on the selenium height. while this feature is universal in transition metal pnictides, in tlni2se2 it lies in the immediate vicinity of the fermi level, giving rise to a pronounced van hove singularity. the resulting heavy band mass resolves the apparent puzzle of a large normal-state sommerfeld coefficient [h. wang et al., phys. rev. lett 111, 207001 (2013)] in this weakly correlated compound. |
| WOS关键词 | GAP |
| 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:000359943400004 |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2374034 |
| 专题 | 物理研究所 |
| 通讯作者 | Xu, N. |
| 作者单位 | 1.Paul Scherrer Inst, Swiss Light Source, CH-5232 Villigen, Switzerland 2.Ecole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland 3.ETH, Solid State Phys Lab, CH-8093 Zurich, Switzerland 4.Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China 5.Chinese Acad Sci, Inst Phys, Beijing 100190, Peoples R China 6.Collaborat Innovat Ctr Quantum Matter, Beijing, Peoples R China 7.Ecole Polytech, UMR7644, CNRS, Ctr Phys Theor, F-91128 Palaiseau, France 8.Coll France, F-75005 Paris, France 9.Univ Calif Santa Barbara, Kavli Inst Theoret Phys, Santa Barbara, CA 93106 USA 10.Paul Scherrer Inst, SwissFEL, CH-5232 Villigen, Switzerland |
| 推荐引用方式 GB/T 7714 | Xu, N.,Matt, C. E.,Richard, P.,et al. Camelback-shaped band reconciles heavy-electron behavior with weak electronic coulomb correlations in superconducting tlni2se2[J]. Physical review b,2015,92(8):5. |
| APA | Xu, N..,Matt, C. E..,Richard, P..,van Roekeghem, A..,Biermann, S..,...&Shi, M..(2015).Camelback-shaped band reconciles heavy-electron behavior with weak electronic coulomb correlations in superconducting tlni2se2.Physical review b,92(8),5. |
| MLA | Xu, N.,et al."Camelback-shaped band reconciles heavy-electron behavior with weak electronic coulomb correlations in superconducting tlni2se2".Physical review b 92.8(2015):5. |
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