Voltage-induced metal-insulator transition in a one-dimensional charge density wave
- Columbia Univ., New York, NY (United States). Dept. of Physics
- Columbia Univ., New York, NY (United States). Dept. of Physics; The Flatiron Inst., New York, NY (United States). Center for Computational Quantum Physics
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 Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012375
- OSTI ID:
- 1484000
- Alternate ID(s):
- OSTI ID: 1483922
- Journal Information:
- Physical Review B, Vol. 98, Issue 20; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Negative absolute conductivity in photoexcited metals | text | January 2019 |
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