A study of the electronic structure of FeSe1-xTex chalcogenides by Fe and Se K-edge x-ray absorption near edge structure measurements

被引：55
|
作者：
Joseph, B. [1 ]
Iadecola, A. [1 ]
Simonelli, L. [2 ]
Mizuguchi, Y. [3 ,4 ]
Takano, Y. [3 ,4 ]
Mizokawa, T. [5 ,6 ]
Saini, N. L. [1 ,6 ]
机构：
[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy
[2] European Synchrotron Radiat Facil, F-38043 Grenoble 9, France
[3] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan
[4] JST TRIP, Tsukuba, Ibaraki 3050047, Japan
[5] Univ Tokyo, Dept Phys, Chiba 2778561, Japan
[6] Univ Tokyo, Dept Complex Sci & Engn, Chiba 2778561, Japan
来源：
JOURNAL OF PHYSICS-CONDENSED MATTER | 2010年 / 22卷 / 48期
关键词：
LOCAL-STRUCTURE; SUPERCONDUCTIVITY; TRANSITION; CRYSTAL;
D O I：
10.1088/0953-8984/22/48/485702
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
Fe K-edge and Se K-edge x-ray absorption near edge structure (XANES) measurements are used to study the FeSe1-xTex electronic structure of chalcogenides. An intense Fe K-edge pre-edge peak due to Fe 1s -> 3d (and admixed Se/Te p states) is observed, showing substantial change with Te substitution and x-ray polarization. The main white line peak in the Se K-edge XANES due to Se 1s -> 4p transition appears similar to the one expected for Se2- systems and changes with Te substitution. Polarization dependence reveals that unoccupied Se orbitals near the Fermi level have predominant p(x,y) character. The results provide key information on the hybridization of Fe 3d and chalcogen p states in the Fe-based chalcogenide superconductors.
引用
收藏
页数：5
相关论文
共 50 条
  • [1] Electronic structure of FeSe1-xTex studied by Fe L2,3-edge x-ray absorption spectroscopy
    Saini, N. L.
    Wakisaka, Y.
    Joseph, B.
    Iadecola, A.
    Dalela, S.
    Srivastava, P.
    Magnano, E.
    Malvestuto, M.
    Mizuguchi, Y.
    Takano, Y.
    Mizokawa, T.
    Garg, K. B.
    PHYSICAL REVIEW B, 2011, 83 (05):
  • [2] The nanoscale structure and unoccupied valence electronic states in FeSe1-xTex chalcogenides probed by X-ray absorption measurements
    Hacisalihoglu, M. Y.
    Paris, E.
    Joseph, B.
    Yanmaz, E.
    Saini, N. L.
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2015, 17 (27) : 18131 - 18137
  • [3] The electronic structure of uranium dioxide: an oxygen K-edge x-ray absorption study
    Jollet, F
    Petit, T
    Gota, S
    Thromat, N
    GautierSoyer, M
    Pasturel, A
    JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (43) : 9393 - 9401
  • [4] Elucidating the K-Edge X-Ray Absorption Near-Edge Structure of Cobalt Carbide
    Moya-Cancino, Jose G.
    Honkanen, Ari-Pekka
    van der Eerden, Ad M. J.
    Schaink, Herrick
    Folkertsma, Lieven
    Ghiasi, Mahnaz
    Longo, Alessandro
    Meirer, Florian
    de Groot, Frank M. F.
    Huotari, Simo
    Weckhuysen, Bert M.
    CHEMCATCHEM, 2019, 11 (13) : 3042 - 3045
  • [5] C K-edge x-ray absorption near-edge structure of carbon nanotubes
    Imamura, Motoyasu
    Shimada, Hiromichi
    Matsubayashi, Nobuyuki
    Yumura, Motoo
    Uchida, Kunio
    Oshima, Satoshi
    Kuriki, Yasunori
    Yoshimura, Yuji
    Sato, Toshio
    Nishjima, Akio
    Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 1994, 33 (7 B): : 1016 - 1018
  • [6] X-Ray spectra and electronic correlations of FeSe1-xTex
    Chen, C. L.
    Dong, C. L.
    Chen, J. L.
    Guo, J. -H.
    Yang, W. L.
    Hsu, C. C.
    Yeh, K. W.
    Huang, T. W.
    Mok, B. H.
    Chan, T. S.
    Lee, J. F.
    Chang, C. L.
    Rao, S. M.
    Wu, M. K.
    PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 2011, 13 (34) : 15666 - 15672
  • [7] X-RAY K-EDGE ABSORPTION-SPECTRA OF FE MINERALS AND MODEL COMPOUNDS - NEAR-EDGE STRUCTURE
    WAYCHUNAS, GA
    APTED, MJ
    BROWN, GE
    PHYSICS AND CHEMISTRY OF MINERALS, 1983, 10 (01) : 1 - 9
  • [8] Electronic Structure of FeSe1-xTex Studied by X-ray Spectroscopy and Density Functional Theory
    Perez, I.
    Mcleod, J. A.
    Green, R. J.
    Escamilla, R.
    Ortiz, V.
    Moewes, A.
    JOURNAL OF PHYSICAL CHEMISTRY C, 2014, 118 (43): : 25150 - 25157
  • [9] X-ray absorption near edge structure of DNA bases around oxygen and nitrogen K-edge
    Fujii, K
    Akamatsu, K
    Muramatsu, Y
    Yokoya, A
    NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2003, 199 : 249 - 254
  • [10] Electronic properties of FeSe1-xTex probed by x-ray emission and absorption spectroscopy
    Simonelli, L.
    Saini, N. L.
    Mizuguchi, Y.
    Takano, Y.
    Mizokawa, T.
    Baldi, G.
    Monaco, G.
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2012, 24 (41)
12345