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  • Letter

Emergent superconductivity and non-Fermi liquid transport in a doped valence bond solid insulator

Zi-Xiang Li, Steven G. Louie, and Dung-Hai Lee*

  • Department of Physics, University of California, Berkeley, California 94720, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA

  • *Corresponding author: dunghai@berkeley.edu
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Phys. Rev. B 107, L041103 – Published 11 January, 2023

DOI: https://doi.org/10.1103/PhysRevB.107.L041103

Abstract

In this Letter, we study the superconductivity and non-Fermi liquid transport behavior in a doped valence bond solid insulator using sign-problem-free quantum Monte Carlo simulation. We show superconductivity emerges as a function of doping. For a wide temperature range above the superconducting Tc, a pseudogap exists. Moreover, close to the valence bond solid to semimetal quantum critical point at half filling, we observe linear temperature resistivity when doping is nonzero.

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Phys. Rev. B 107, L041103– Published 11 January, 2023
  • Received 12 January 2022
  • Revised 21 December 2022
  • Accepted 22 December 2022
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