Orbital Occupancy and Charge Doping in Iron-Based Superconductors

被引：13
|
作者：
Cantoni, Claudia [1 ]
Mitchell, Jonathan E. [1 ]
May, Andrew F. [1 ]
McGuire, Michael A. [1 ]
Idrobo, Juan-Carlos [1 ,2 ,3 ]
Berlijn, Tom [3 ,4 ]
Dagotto, Elbio [5 ]
Chisholm, Matthew F. [1 ]
Zhou, Wu [1 ,2 ]
Pennycook, Stephen J. [1 ]
Sefat, Athena S. [1 ]
Sales, Brian C. [1 ]
机构：
[1] Oak Ridge Natl Lab, Mat Sci & Technol Div, Oak Ridge, TN 37831 USA
[2] Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA
[3] Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA
[4] Oak Ridge Natl Lab, Comp Sci & Math Div, Oak Ridge, TN 37831 USA
[5] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37996 USA
来源：
ADVANCED MATERIALS | 2014年 / 26卷 / 35期
基金：
美国国家科学基金会;
关键词：
X-RAY-ABSORPTION; MAGNETIC-BEHAVIOR; TRANSITION; A(X)FE(2)SE(2); PNICTIDES; RATIO;
D O I：
10.1002/adma.201401518
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The intrinsic Fe local magnetic moment and Fe orbital occupations of iron-based superconductors are unveiled through the local, real-space capability of aberration-corrected scanning transmission electron microscopy/electron energy loss spectroscopy (STEM/EELS). Although the ordering of Fe moments needs to be suppressed for superconductivity to arise, the local, fluctuating Fe magnetic moment is enhanced near optimal superconductivity.
引用
收藏
页码：6193 / +
页数：7
相关论文
共 50 条
  • [1] ELEMENTARY EXCITATIONS DUE TO ORBITAL DEGREES OF FREEDOM IN IRON-BASED SUPERCONDUCTORS
    Lee, Wei-Cheng
    Lv, Weicheng
    Arham, Hamood Z.
    INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2013, 27 (20):
  • [2] Orbital selective pairing and gap structures of iron-based superconductors
    Kreisel, Andreas
    Andersen, Brian M.
    Sprau, P. O.
    Kostin, A.
    Davis, J. C. Seamus
    Hirschfeld, P. J.
    PHYSICAL REVIEW B, 2017, 95 (17)
  • [3] Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors
    Miao, H.
    Wang, L. -M.
    Richard, P.
    Wu, S. -F.
    Ma, J.
    Qian, T.
    Xing, L. -Y.
    Wang, X. -C.
    Jin, C. -Q.
    Chou, C. -P.
    Wang, Z.
    Ku, W.
    Ding, H.
    PHYSICAL REVIEW B, 2014, 89 (22):
  • [4] Charge nematicity and electronic Raman scattering in iron-based superconductors
    Gallais, Yann
    Paul, Indranil
    COMPTES RENDUS PHYSIQUE, 2016, 17 (1-2) : 113 - 139
  • [5] Orbital Selectivity in Electron Correlations and Superconducting Pairing of Iron-Based Superconductors
    Yu, Rong
    Hu, Haoyu
    Nica, Emilian M.
    Zhu, Jian-Xin
    Si, Qimiao
    FRONTIERS IN PHYSICS, 2021, 9
  • [6] Extraordinary Doping Effects on Quasiparticle Scattering and Bandwidth in Iron-Based Superconductors
    Ye, Z. R.
    Zhang, Y.
    Chen, F.
    Xu, M.
    Jiang, J.
    Niu, X. H.
    Wen, C. H. P.
    Xing, L. Y.
    Wang, X. C.
    Jin, C. Q.
    Xie, B. P.
    Feng, D. L.
    PHYSICAL REVIEW X, 2014, 4 (03):
  • [7] A view from inside iron-based superconductors
    Carretta, P.
    De Renzi, R.
    Prando, G.
    Sanna, S.
    PHYSICA SCRIPTA, 2013, 88 (06)
  • [8] Nematicity driven by hybridization in iron-based superconductors
    Stanev, Valentin
    Littlewood, Peter B.
    PHYSICAL REVIEW B, 2013, 87 (16):
  • [9] The driving mechanism of the d-wave orbital order in the iron-based superconductors
    Yao, Da-Wei
    Li, Tao
    JOURNAL OF PHYSICS-CONDENSED MATTER, 2018, 30 (49)
  • [10] Orbital-dependent effects of electron correlations in microscopic models for iron-based superconductors
    Yu, Rong
    Zhu, Jian-Xin
    Si, Qimiao
    CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE, 2013, 17 (02) : 65 - 71
12345