Microscopic theory for radiation-induced zero-resistance states in 2D electron systems: Franck-Condon blockade
Abstract
We present a microscopic model on radiation-induced zero resistance states according to a novel approach: Franck-Condon physics and blockade. Zero resistance states rise up from radiation-induced magnetoresistance oscillations when the light intensity is strong enough. The theory begins with the radiation-driven electron orbit model that proposes an interplay of the swinging nature of the radiation-driven Landau states and the presence of charged impurity scattering. When the intensity of radiation is high enough, the driven-Landau states (vibrational states) involved in the scattering process are spatially far from each other and the corresponding electron wave functions no longer overlap. As a result, a drastic suppression of the scattering probability takes place and current and magnetoresistance exponentially drop. Finally, zero resistance states rise up. This is an application to magnetotransport in two-dimensional electron systems of the Franck-Condon blockade, based on the Franck-Condon physics which in turn stems from molecular vibrational spectroscopy.
- Publication:
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Applied Physics Letters
- Pub Date:
- April 2017
- DOI:
- 10.1063/1.4979830
- arXiv:
- arXiv:1612.05247
- Bibcode:
- 2017ApPhL.110n3105I
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 5 pages, 6 figures