Orbital characters of bands in the iron-based superconductor BaFe1.85Co0.15As2
Physical Review B Volume 83 Issue 5
Page 054510-1-054510-9
published_at 2011-02-22
アクセス数 : 1152 件
ダウンロード数 : 177 件
今月のアクセス数 : 0 件
今月のダウンロード数 : 0 件
この文献の参照には次のURLをご利用ください : https://ir.lib.hiroshima-u.ac.jp/00031966
| File | |
| Title ( eng ) |
Orbital characters of bands in the iron-based superconductor BaFe1.85Co0.15As2
|
| Creator |
Zhang Y.
Chen F.
He C.
Zhou B.
Xie B. P.
Fang C.
Tsai W. F.
Chen X. H.
Hayashi H.
Jiang J.
Hu J. P.
Feng D. L.
|
| Source Title |
Physical Review B
|
| Volume | 83 |
| Issue | 5 |
| Start Page | 054510-1 |
| End Page | 054510-9 |
| Abstract |
The unconventional superconductivity in the newly discovered iron-based superconductors is intimately related to its multiband/multiorbital nature. Here we report the comprehensive orbital characters of the low-energy three-dimensional electronic structure in BaFe_<1.85>Co_<0.15>As_2 by studying the polarization and photon-energy dependence of angle-resolved photoemission data. While the distributions of the d_<xz>, d_<yz>, and d_<3z^2-r^2> orbitals agree with the prediction of density functional theory, those of the d_<xy> and d_<x^2-y^2> orbitals show remarkable disagreement with theory. Our results point out the inadequacy of the existing band structure calculations and, more importantly, provide a foundation for constructing the correct microscopic model of iron pnictides.
|
| NDC |
Physics [ 420 ]
|
| Language |
eng
|
| Resource Type | journal article |
| Publisher |
The American Physical Society
|
| Date of Issued | 2011-02-22 |
| Rights |
Copyright (c) 2011 The American Physical Society
|
| Publish Type | Version of Record |
| Access Rights | open access |
| Source Identifier |
[ISSN] 1098-0121
[DOI] 10.1103/PhysRevB.83.054510
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.83.054510
|
