Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors

H. Miao; L. M. Wang; P. Richard; S. F. Wu; J. Ma; T. Qian; L. Y. Xing; X. C. Wang; C. Q. Jin; C. P. Chou; Z. Wang; W. Ku; H. Ding

doi:10.1103/PhysRevB.89.220503

Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors

H. Miao, L. M. Wang, P. Richard, S. F. Wu, J. Ma, T. Qian, L. Y. Xing, X. C. Wang, C. Q. Jin, C. P. Chou, Z. Wang, W. Ku, H. Ding

Research output: Contribution to journal › Article › peer-review

30 Scopus citations

Abstract

We report the angle-resolved photoemission spectroscopy observation of the lifting of symmetry-protected band degeneracy, and consequently the breakdown of local tetragonal symmetry in the superconducting state of Li(Fe1âxCox)As. Supported by theoretical simulations, we analyze the doping and temperature dependences of this band splitting and demonstrate an intimate connection between ferro-orbital correlations and superconductivity.

Original language	English
Article number	220503
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.89.220503
State	Published - Jun 11 2014
Externally published	Yes

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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. (2014). Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors. Physical Review B - Condensed Matter and Materials Physics, 89(22), Article 220503. https://doi.org/10.1103/PhysRevB.89.220503

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AU - Miao, H.

AU - Wang, L. M.

AU - Richard, P.

AU - Wu, S. F.

AU - Ma, J.

AU - Qian, T.

AU - Xing, L. Y.

AU - Wang, X. C.

AU - Jin, C. Q.

AU - Chou, C. P.

AU - Wang, Z.

AU - Ku, W.

AU - Ding, H.

PY - 2014/6/11

Y1 - 2014/6/11

N2 - We report the angle-resolved photoemission spectroscopy observation of the lifting of symmetry-protected band degeneracy, and consequently the breakdown of local tetragonal symmetry in the superconducting state of Li(Fe1âxCox)As. Supported by theoretical simulations, we analyze the doping and temperature dependences of this band splitting and demonstrate an intimate connection between ferro-orbital correlations and superconductivity.

AB - We report the angle-resolved photoemission spectroscopy observation of the lifting of symmetry-protected band degeneracy, and consequently the breakdown of local tetragonal symmetry in the superconducting state of Li(Fe1âxCox)As. Supported by theoretical simulations, we analyze the doping and temperature dependences of this band splitting and demonstrate an intimate connection between ferro-orbital correlations and superconductivity.

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DO - 10.1103/PhysRevB.89.220503

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VL - 89

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 22

M1 - 220503

ER -

Coexistence of orbital degeneracy lifting and superconductivity in iron-based superconductors

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