Title: Voltage-induced metal-insulator transition in a one-dimensional charge density wave

Journal Article · · Physical Review B
 [1];  [2]
  1. Columbia Univ., New York, NY (United States). Dept. of Physics; Columbia University
  2. Columbia Univ., New York, NY (United States). Dept. of Physics; The Flatiron Inst., New York, NY (United States). Center for Computational Quantum Physics
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Here, we present a theoretical investigation of the voltage-driven metal insulator transition based on solving coupled Boltzmann and Hartree-Fock equations to determine the insulating gap and the electron distribution in a model system – a one dimensional charge density wave. Electric fields that are parametrically small relative to energy gaps can shift the electron distribution away from the momentum-space region where interband relaxation is efficient, leading to a highly non-equilibrium quasiparticle distribution even in the absence of Zener tunneling. The gap equation is found to have regions of multistability; a non-equilibrium analog of the free energy is constructed and used to determine which phase is preferred.

Research Organization:
Columbia Univ., New York, NY (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012375
OSTI ID:
1484000
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 20 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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Cited By (2)

Negative absolute conductivity in photoexcited metals journal January 2020
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