Partial Kondo screening induced chiral d-wave superconductivity in a honeycomb lattice
ORAL
Abstract
Kondo-Heisenberg model is one of the fascinating playground to study various phases, especially heavy (or fractionalized) Fermi liquid, Kondo singlet insulator, and superconductivity. We investigate the unconventional superconducting phases for the J1 -J2<span style="font-size:10.8333px"> </span>Kondo-Heisenberg model in a honeycomb lattice at a quarter filling. We analytically show that the d±id spinon pairing induces an electron pairing mediated by partial Kondo ordering, also resulting in the chiral superconductivity with non-trivial Chern number. Surprisingly, the inverse chirality on the electron sector is induced depending on the form of the Kondo order parameter. Finally, we propose the distinguished electric and thermal transport experiment signature of each phase.
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Presenters
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Hee Seung Kim
KAIST
Authors
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Hee Seung Kim
KAIST
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Hyeok-Jun Yang
KAIST
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SungBin Lee
KAIST