Electric field – velocity relation for strongly coupled Fröhlich polaron in emerging 2D materials
Abstract
In this paper we evaluate the electric field—velocity relation for strong electron—LO phonon coupled 2D materials namely Hf S 2 , HfS e 2 , Zr S 2 and ZrS e 2 by applying Thornber—Feynman (TF) formalism applied to the case of the 2D Fröhlich polaron. We demonstrate that the generally-accepted Fermi’s Golden Rule based approach breaks down for these strongly coupled materials. We predict ZrS e 2 has highest mobility of 449 c m 2 / V -s at room temperature followed by HfS e 2 with 240 c m 2 / V -s whereas other materials have below 100 c m 2 / V -s.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Sep 01, 2022
- Source ID
- 10.1088/2399-6528/ac9034
Entities
People
- Michael A. Stroscio
- Mitra Dutta
- Ramji Singh
Organizations
- Air Force Office of Scientific Research