Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe 0.55Se 0.45

H. Miao; P. Richard; Y. Tanaka; K. Nakayama; T. Qian; K. Umezawa; T. Sato; Y. M. Xu; Y. B. Shi; N. Xu; X. P. Wang; P. Zhang; H. B. Yang; Z. J. Xu; J. S. Wen; G. D. Gu; X. Dai; J. P. Hu; T. Takahashi; H. Ding

doi:10.1103/PhysRevB.85.094506

Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe _0.55Se _0.45

H. Miao, P. Richard, Y. Tanaka, K. Nakayama, T. Qian, K. Umezawa, T. Sato, Y. M. Xu, Y. B. Shi, N. Xu, X. P. Wang, P. Zhang, H. B. Yang, Z. J. Xu, J. S. Wen, G. D. Gu, X. Dai, J. P. Hu, T. Takahashi, H. Ding

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133 Scopus citations

Abstract

We used angle-resolved photoemission spectroscopy to reveal directly the momentum distribution of the superconducting gap in FeTe _1-xSe _x, which has the simplest structure of all Fe-based superconductors. We found isotropic superconducting gaps on all Fermi surfaces whose sizes can be fitted by a single gap function derived from a strong coupling approach, promoting local antiferromagnetic exchange interactions as a serious candidate for the pairing origin.

Original language	English
Article number	094506
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	85
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevB.85.094506
State	Published - Mar 6 2012
Externally published	Yes

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Miao, H., Richard, P., Tanaka, Y., Nakayama, K., Qian, T., Umezawa, K., Sato, T., Xu, Y. M., Shi, Y. B., Xu, N., Wang, X. P., Zhang, P., Yang, H. B., Xu, Z. J., Wen, J. S., Gu, G. D., Dai, X., Hu, J. P., Takahashi, T., & Ding, H. (2012). Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe _0.55Se _0.45 Physical Review B - Condensed Matter and Materials Physics, 85(9), Article 094506. https://doi.org/10.1103/PhysRevB.85.094506

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title = "Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe 0.55Se 0.45 ",

abstract = "We used angle-resolved photoemission spectroscopy to reveal directly the momentum distribution of the superconducting gap in FeTe 1-xSe x, which has the simplest structure of all Fe-based superconductors. We found isotropic superconducting gaps on all Fermi surfaces whose sizes can be fitted by a single gap function derived from a strong coupling approach, promoting local antiferromagnetic exchange interactions as a serious candidate for the pairing origin.",

author = "H. Miao and P. Richard and Y. Tanaka and K. Nakayama and T. Qian and K. Umezawa and T. Sato and Xu, {Y. M.} and Shi, {Y. B.} and N. Xu and Wang, {X. P.} and P. Zhang and Yang, {H. B.} and Xu, {Z. J.} and Wen, {J. S.} and Gu, {G. D.} and X. Dai and Hu, {J. P.} and T. Takahashi and H. Ding",

year = "2012",

month = mar,

day = "6",

doi = "10.1103/PhysRevB.85.094506",

language = "English",

volume = "85",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "1098-0121",

publisher = "American Physical Society",

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Miao, H, Richard, P, Tanaka, Y, Nakayama, K, Qian, T, Umezawa, K, Sato, T, Xu, YM, Shi, YB, Xu, N, Wang, XP, Zhang, P, Yang, HB, Xu, ZJ, Wen, JS, Gu, GD, Dai, X, Hu, JP, Takahashi, T & Ding, H 2012, 'Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe _0.55Se _0.45 ', Physical Review B - Condensed Matter and Materials Physics, vol. 85, no. 9, 094506. https://doi.org/10.1103/PhysRevB.85.094506

TY - JOUR

T1 - Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe 0.55Se 0.45

AU - Miao, H.

AU - Richard, P.

AU - Tanaka, Y.

AU - Nakayama, K.

AU - Qian, T.

AU - Umezawa, K.

AU - Sato, T.

AU - Xu, Y. M.

AU - Shi, Y. B.

AU - Xu, N.

AU - Wang, X. P.

AU - Zhang, P.

AU - Yang, H. B.

AU - Xu, Z. J.

AU - Wen, J. S.

AU - Gu, G. D.

AU - Dai, X.

AU - Hu, J. P.

AU - Takahashi, T.

AU - Ding, H.

PY - 2012/3/6

Y1 - 2012/3/6

N2 - We used angle-resolved photoemission spectroscopy to reveal directly the momentum distribution of the superconducting gap in FeTe 1-xSe x, which has the simplest structure of all Fe-based superconductors. We found isotropic superconducting gaps on all Fermi surfaces whose sizes can be fitted by a single gap function derived from a strong coupling approach, promoting local antiferromagnetic exchange interactions as a serious candidate for the pairing origin.

AB - We used angle-resolved photoemission spectroscopy to reveal directly the momentum distribution of the superconducting gap in FeTe 1-xSe x, which has the simplest structure of all Fe-based superconductors. We found isotropic superconducting gaps on all Fermi surfaces whose sizes can be fitted by a single gap function derived from a strong coupling approach, promoting local antiferromagnetic exchange interactions as a serious candidate for the pairing origin.

UR - http://www.scopus.com/inward/record.url?scp=84863230476&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.85.094506

DO - 10.1103/PhysRevB.85.094506

M3 - Article

AN - SCOPUS:84863230476

SN - 1098-0121

VL - 85

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 9

M1 - 094506

ER -

Isotropic superconducting gaps with enhanced pairing on electron Fermi surfaces in FeTe _0.55Se _0.45

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