Mixed-Pairing Superconductivity in Twisted Bilayer Transition-Metal-Dichalcogenides
ORAL
Abstract
Mehdi Biderang1, Mohammad-Hossein Zare2, and Thomas Scaffidi1,3
1Department of Physics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 1A7, Canada
2Department of Physics, Qom University of Technology, Qom 37181-46645, Iran
3Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
We study the possibility of electron-driven unconventional superconductivity in twisted bilayer transition metal dichalcogenide systems such as WSe2 in the presence of an out-of-plane electric field. Using a mean-field approximation on the moire Hubbard model, we observe a mixed singlet-triplet superconducting order parameter with different pairing symmetries on the band filling and displacement field. Moreover, we predict signatures of these superconducting phases which could be measured in the quasiparticle interference spectra.
1Department of Physics, University of Toronto, 60 St. George Street, Toronto, Ontario M5S 1A7, Canada
2Department of Physics, Qom University of Technology, Qom 37181-46645, Iran
3Department of Physics and Astronomy, University of California, Irvine, California 92697, USA
We study the possibility of electron-driven unconventional superconductivity in twisted bilayer transition metal dichalcogenide systems such as WSe2 in the presence of an out-of-plane electric field. Using a mean-field approximation on the moire Hubbard model, we observe a mixed singlet-triplet superconducting order parameter with different pairing symmetries on the band filling and displacement field. Moreover, we predict signatures of these superconducting phases which could be measured in the quasiparticle interference spectra.
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Presenters
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Mehdi Biderang
Univ of Toronto
Authors
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Mehdi Biderang
Univ of Toronto