Keski-Rahkonen, Joonas and Ouyang, Xiaoyu and Yuan, Shaobing and Graf, Anton M. and Aydın, Alhun and Heller, Eric J. (2024) Quantum-acoustical drude peak shift. Physical Review Letters, 132 (18). ISSN 0031-9007 (Print) 1079-7114 (Online)
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Official URL: https://dx.doi.org/10.1103/PhysRevLett.132.186303
Abstract
Quantum acoustics - a recently developed framework parallel to quantum optics - establishes a nonperturbative and coherent treatment of the electron-phonon interaction in real space. The quantum-acoustical representation reveals a displaced Drude peak hiding in plain sight within the venerable Fröhlich model: the optical conductivity exhibits a finite frequency maximum in the far-infrared range and the dc conductivity is suppressed. Our results elucidate the origin of the high-temperature absorption peaks in strange or bad metals, revealing that dynamical lattice disorder steers the system towards a non-Drude behavior.
| Item Type: | Article |
|---|---|
| Divisions: | Faculty of Engineering and Natural Sciences |
| Depositing User: | Alhun Aydın |
| Date Deposited: | 10 Jun 2024 21:36 |
| Last Modified: | 10 Jun 2024 21:36 |
| URI: | https://research.sabanciuniv.edu/id/eprint/49420 |
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