Xu, N., Richard, P., Shi, X., Van Roekeghem, A., Qian, T., Razzoli, E., Rienks, E., Chen, G. F., Ieki, E., Nakayama, K., Sato, T., Takahashi, T., Shi, M., & Ding, H. (2013). Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2. Physical Review B - Condensed Matter and Materials Physics, 88(22), Article 220508. https://doi.org/10.1103/PhysRevB.88.220508
Xu, N. ; Richard, P. ; Shi, X. et al. / Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2. In: Physical Review B - Condensed Matter and Materials Physics. 2013 ; Vol. 88, No. 22.
@article{5b69901254cd46b596bfc256eaa2f2ac,
title = "Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2",
abstract = "We performed a high-energy resolution angle-resolved photoemission spectroscopy investigation of overdoped Ba0.1K0.9Fe2As2 with Tc=9 K. The Fermi surface topology of this material is similar to that of KFe2As2 and differs from that of slightly less doped Ba0.3K0.7Fe2As2, implying that a Lifshitz transition occurred between x=0.7 and x=0.9. Albeit for a vertical node found at the tip of the emerging off-M-centered Fermi surface pocket lobes, the superconducting gap structure is similar to that of Ba0.3K0.7Fe2As2, suggesting that the pairing interaction is not driven by the Fermi surface topology, but nevertheless reveals the possible importance of the Fermi surface topology in shaping the superconducting gap structure.",
author = "N. Xu and P. Richard and X. Shi and {Van Roekeghem}, A. and T. Qian and E. Razzoli and E. Rienks and Chen, {G. F.} and E. Ieki and K. Nakayama and T. Sato and T. Takahashi and M. Shi and H. Ding",
year = "2013",
month = jan,
day = "19",
doi = "10.1103/PhysRevB.88.220508",
language = "English",
volume = "88",
journal = "Physical Review B - Condensed Matter and Materials Physics",
issn = "1098-0121",
publisher = "American Physical Society",
number = "22",
}
Xu, N, Richard, P, Shi, X, Van Roekeghem, A, Qian, T, Razzoli, E, Rienks, E, Chen, GF, Ieki, E, Nakayama, K, Sato, T, Takahashi, T, Shi, M & Ding, H 2013, 'Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2', Physical Review B - Condensed Matter and Materials Physics, vol. 88, no. 22, 220508. https://doi.org/10.1103/PhysRevB.88.220508
Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2. / Xu, N.; Richard, P.
; Shi, X. et al.
In:
Physical Review B - Condensed Matter and Materials Physics, Vol. 88, No. 22, 220508, 19.01.2013.
Research output: Contribution to journal › Article › peer-review
TY - JOUR
T1 - Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2
AU - Xu, N.
AU - Richard, P.
AU - Shi, X.
AU - Van Roekeghem, A.
AU - Qian, T.
AU - Razzoli, E.
AU - Rienks, E.
AU - Chen, G. F.
AU - Ieki, E.
AU - Nakayama, K.
AU - Sato, T.
AU - Takahashi, T.
AU - Shi, M.
AU - Ding, H.
PY - 2013/1/19
Y1 - 2013/1/19
N2 - We performed a high-energy resolution angle-resolved photoemission spectroscopy investigation of overdoped Ba0.1K0.9Fe2As2 with Tc=9 K. The Fermi surface topology of this material is similar to that of KFe2As2 and differs from that of slightly less doped Ba0.3K0.7Fe2As2, implying that a Lifshitz transition occurred between x=0.7 and x=0.9. Albeit for a vertical node found at the tip of the emerging off-M-centered Fermi surface pocket lobes, the superconducting gap structure is similar to that of Ba0.3K0.7Fe2As2, suggesting that the pairing interaction is not driven by the Fermi surface topology, but nevertheless reveals the possible importance of the Fermi surface topology in shaping the superconducting gap structure.
AB - We performed a high-energy resolution angle-resolved photoemission spectroscopy investigation of overdoped Ba0.1K0.9Fe2As2 with Tc=9 K. The Fermi surface topology of this material is similar to that of KFe2As2 and differs from that of slightly less doped Ba0.3K0.7Fe2As2, implying that a Lifshitz transition occurred between x=0.7 and x=0.9. Albeit for a vertical node found at the tip of the emerging off-M-centered Fermi surface pocket lobes, the superconducting gap structure is similar to that of Ba0.3K0.7Fe2As2, suggesting that the pairing interaction is not driven by the Fermi surface topology, but nevertheless reveals the possible importance of the Fermi surface topology in shaping the superconducting gap structure.
UR - http://www.scopus.com/inward/record.url?scp=84892398357&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.88.220508
DO - 10.1103/PhysRevB.88.220508
M3 - Article
AN - SCOPUS:84892398357
SN - 1098-0121
VL - 88
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 22
M1 - 220508
ER -
Xu N, Richard P, Shi X, Van Roekeghem A, Qian T, Razzoli E et al. Possible nodal superconducting gap and Lifshitz transition in heavily hole-doped Ba 0.1 K 0.9 Fe 2 As 2. Physical Review B - Condensed Matter and Materials Physics. 2013 Jan 19;88(22):220508. doi: 10.1103/PhysRevB.88.220508
