Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit

Research output: Contribution to journal › Journal article › Research › peer-review

Standard

Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit. / Liu, Chaofei; Kreisel, Andreas; Zhong, Shan; Li, Yu; Andersen, Brian M.; Hirschfeld, Peter; Wang, Jian.

In: Nano Letters, Vol. 22, No. 8, 27.04.2022, p. 3245-3251.

Research output: Contribution to journal › Journal article › Research › peer-review

Harvard

Liu, C, Kreisel, A, Zhong, S, Li, Y, Andersen, BM, Hirschfeld, P & Wang, J 2022, 'Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit', Nano Letters, vol. 22, no. 8, pp. 3245-3251. https://doi.org/10.1021/acs.nanolett.1c04863

APA

Liu, C., Kreisel, A., Zhong, S., Li, Y., Andersen, B. M., Hirschfeld, P., & Wang, J. (2022). Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit. Nano Letters, 22(8), 3245-3251. https://doi.org/10.1021/acs.nanolett.1c04863

Vancouver

Liu C, Kreisel A, Zhong S, Li Y, Andersen BM, Hirschfeld P et al. Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit. Nano Letters. 2022 Apr 27;22(8):3245-3251. https://doi.org/10.1021/acs.nanolett.1c04863

Author

Liu, Chaofei ; Kreisel, Andreas ; Zhong, Shan ; Li, Yu ; Andersen, Brian M. ; Hirschfeld, Peter ; Wang, Jian. / Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit. In: Nano Letters. 2022 ; Vol. 22, No. 8. pp. 3245-3251.

Bibtex

@article{5f2464666b1045599b97eb3284ed4eec,
title = "Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit",
abstract = "For multiband superconductors, the orbital multiplicity yields orbitaldifferentiation in normal-state properties and can lead to orbital-selective spin-fluctuation Cooper pairing. The orbital-selective phenomenon has becomeincreasingly pivotal in clarifying the pairing{"}enigma{"}, particularly for multibandhigh-temperature superconductors. Meanwhile, in one-unit-cell (1-UC) FeSe/SrTiO3, since the standard electron-hole Fermi pocket nesting scenario isinapplicable, the actual pairing mechanism is subject to intense debate. Here, bymeasuring high-resolution Bogoliubovquasiparticle interference, we reportobservations of highly anisotropic magnetic Cooper pairing in 1-UC FeSe.Theoretically, it is important to incorporate orbitally selective effects of electroniccorrelations within a spin-fluctuation pairing calculation, where the dxyorbitalbecomes coherence-suppressed. The resulting pairing gap is compatible with theexperimentalfindings, which suggests that high-TcCooper pairing with orbitalselectivity applies to 2D-limit 1-UC FeSe. Ourfindings imply the general existence of orbital selectivity in iron-basedsuperconductors and the universal significance of electron correlations in high-Tcsuperconductors",
keywords = "one-unit-cell FeSe, SrTiO3, Bogoliubov quasiparticle interference, self-energy, orbital selectivity, Cooper pairing, SUPERCONDUCTIVITY, FESE, LIFETIME",
author = "Chaofei Liu and Andreas Kreisel and Shan Zhong and Yu Li and Andersen, {Brian M.} and Peter Hirschfeld and Jian Wang",
year = "2022",
month = apr,
day = "27",
doi = "10.1021/acs.nanolett.1c04863",
language = "English",
volume = "22",
pages = "3245--3251",
journal = "Nano Letters",
issn = "1530-6984",
publisher = "American Chemical Society",
number = "8",

}

RIS

TY - JOUR

T1 - Orbital-Selective High-Temperature Cooper Pairing Developed inthe Two-Dimensional Limit

AU - Liu, Chaofei

AU - Kreisel, Andreas

AU - Zhong, Shan

AU - Li, Yu

AU - Andersen, Brian M.

AU - Hirschfeld, Peter

AU - Wang, Jian

PY - 2022/4/27

Y1 - 2022/4/27

N2 - For multiband superconductors, the orbital multiplicity yields orbitaldifferentiation in normal-state properties and can lead to orbital-selective spin-fluctuation Cooper pairing. The orbital-selective phenomenon has becomeincreasingly pivotal in clarifying the pairing"enigma", particularly for multibandhigh-temperature superconductors. Meanwhile, in one-unit-cell (1-UC) FeSe/SrTiO3, since the standard electron-hole Fermi pocket nesting scenario isinapplicable, the actual pairing mechanism is subject to intense debate. Here, bymeasuring high-resolution Bogoliubovquasiparticle interference, we reportobservations of highly anisotropic magnetic Cooper pairing in 1-UC FeSe.Theoretically, it is important to incorporate orbitally selective effects of electroniccorrelations within a spin-fluctuation pairing calculation, where the dxyorbitalbecomes coherence-suppressed. The resulting pairing gap is compatible with theexperimentalfindings, which suggests that high-TcCooper pairing with orbitalselectivity applies to 2D-limit 1-UC FeSe. Ourfindings imply the general existence of orbital selectivity in iron-basedsuperconductors and the universal significance of electron correlations in high-Tcsuperconductors

AB - For multiband superconductors, the orbital multiplicity yields orbitaldifferentiation in normal-state properties and can lead to orbital-selective spin-fluctuation Cooper pairing. The orbital-selective phenomenon has becomeincreasingly pivotal in clarifying the pairing"enigma", particularly for multibandhigh-temperature superconductors. Meanwhile, in one-unit-cell (1-UC) FeSe/SrTiO3, since the standard electron-hole Fermi pocket nesting scenario isinapplicable, the actual pairing mechanism is subject to intense debate. Here, bymeasuring high-resolution Bogoliubovquasiparticle interference, we reportobservations of highly anisotropic magnetic Cooper pairing in 1-UC FeSe.Theoretically, it is important to incorporate orbitally selective effects of electroniccorrelations within a spin-fluctuation pairing calculation, where the dxyorbitalbecomes coherence-suppressed. The resulting pairing gap is compatible with theexperimentalfindings, which suggests that high-TcCooper pairing with orbitalselectivity applies to 2D-limit 1-UC FeSe. Ourfindings imply the general existence of orbital selectivity in iron-basedsuperconductors and the universal significance of electron correlations in high-Tcsuperconductors

KW - one-unit-cell FeSe

KW - SrTiO3

KW - Bogoliubov quasiparticle interference

KW - self-energy

KW - orbital selectivity

KW - Cooper pairing

KW - SUPERCONDUCTIVITY

KW - FESE

KW - LIFETIME

U2 - 10.1021/acs.nanolett.1c04863

DO - 10.1021/acs.nanolett.1c04863

M3 - Journal article

C2 - 35416679

VL - 22

SP - 3245

EP - 3251

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 8

ER -

ID: 315529981