Unbalanced Renormalization of Tunneling in MOSFET-type Structures in Strong High-Frequency Electric Fields

TL;DR

This paper investigates how high-frequency electric fields affect tunneling rates in a 2D electron gas with impurities, revealing nonlinear and periodic behaviors in conductivity modifications.

Contribution

It provides a detailed calculation of tunneling rate modifications under high-frequency fields, highlighting nonlinear and periodic effects not previously characterized.

Findings

Tunneling rates are significantly modified by high-frequency electric fields.

Conductivity exhibits a nonlinear dependence on the ac field strength.

Periodic peak structures emerge in the conductivity response.

Abstract

Two-dimensional electron gas coupled to adjacent impurity sites in high-frequency out-of-plane ac control electric field is investigated. Modification of tunneling rates as a function of the field amplitude is calculated. Nonlinear dependence on the ac field strength is reported for the conductivity of two-dimensional electron gas. It develops a periodic peak structure.