期刊
NANO LETTERS
卷 17, 期 5, 页码 2994-2998出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b00286
关键词
Resistive switching; nonequilibrium-phase transition; Landau-Zener tunneling; Joule heating; nonequilibrium Green's function method
类别
资金
- NSF [DMR-1308141]
- Division Of Materials Research
- Direct For Mathematical & Physical Scien [1308141] Funding Source: National Science Foundation
We investigate the dramatic switch of resistance in ordered correlated insulators when they are driven out of equilibrium by a strong voltage bias Microscopic calculations on a driven-dissipative lattice of interacting electrons explain the main experimental features of resistive switching (RS), such as the hysteretic I-V curves and the formation of hot conductive filaments. The energy-resolved electron distribution at the RS reveals the underlying nonequilibrium electronic mechanism, namely Landau-Zener tunneling, and also justifies a thermal description in which the hot-electron temperature, estimated from the first moment of the distribution, matches the equilibrium-phase transition temperature. We discuss the tangled relationship between filament growth and negative differential resistance and the influence of crystallographic structure and disorder in the RS.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据