Nonlocal adiabatic response of Disordered-Insulators

QUEST Center event
No
Speaker
Zvi Ovadyahu
Date
13/06/2019 - 15:30Add to Calendar 2019-06-13 15:30:00 2019-06-13 15:30:00 Nonlocal adiabatic response of Disordered-Insulators Charge transport in Anderson insulators is governed by disorder and Coulomb interactions and their competition leads to glassy behavior. This has been experimentally observed in heavily-doped semiconductors where the disorder necessary to render them Anderson-insulators is large enough to reduce electronic relaxation rates many decades below inter-sites transition-times associated with their conductivity. In this talk, use will be made of this characteristic feature to demonstrate another inherent feature of disordered insulators; a time-dependent local perturbation may induce a nonlocal response over scales that may extend much further than the localization length.     Resnick conference room - Resnick building 2nd floor Department of Physics physics.dept@mail.biu.ac.il Asia/Jerusalem public
Place
Resnick conference room - Resnick building 2nd floor
Abstract

Charge transport in Anderson insulators is governed by disorder and Coulomb interactions and their competition leads to glassy behavior. This has been experimentally observed in heavily-doped semiconductors where the disorder necessary to render them Anderson-insulators is large enough to reduce electronic relaxation rates many decades below inter-sites transition-times associated with their conductivity. In this talk, use will be made of this characteristic feature to demonstrate another inherent feature of disordered insulators; a time-dependent local perturbation may induce a nonlocal response over scales that may extend much further than the localization length.    

Last Updated Date : 02/06/2019