Dynamical Cooper pairing in nonequilibrium electron-phonon systems
Journal Article
·
· Physical Review B
- Technical Univ. of Munich, Garching (Germany). Inst. for Advanced Study. Walter Schottky Inst. Dept. of Physics
- California Inst. of Technology (CalTech), Pasadena, CA (United States). Inst. for Quantum Information and Matter
- Argonne National Lab. (ANL), Argonne, IL (United States). Materials Science Division
- Harvard Univ., Cambridge, MA (United States). Dept. of Physics
In this paper, we analyze Cooper pairing instabilities in strongly driven electron-phonon systems. The light-induced nonequilibrium state of phonons results in a simultaneous increase of the superconducting coupling constant and the electron scattering. We demonstrate that the competition between these effects leads to an enhanced superconducting transition temperature in a broad range of parameters. Finally, our results may explain the observed transient enhancement of superconductivity in several classes of materials upon irradiation with high intensity pulses of terahertz light, and may pave new ways for engineering high-temperature light-induced superconducting states.
- Research Organization:
- Argonne National Laboratory (ANL), Argonne, IL (United States); California Institute of Technology (CalTech), Pasadena, CA (United States); Technical Univ. of Munich, Garching (Germany)
- Sponsoring Organization:
- USDOE Office of Science (SC); National Science Foundation (NSF); German Excellence Initiative (Germany); European Union FP7 (Belgium); German Research Foundation (DFG)
- Contributing Organization:
- Harvard Univ., Cambridge, MA (United States)
- Grant/Contract Number:
- AC02-06CH11357; DMR-1308435; DMR-1410435; 291763; KN 1254/1-1
- OSTI ID:
- 1352663
- Alternate ID(s):
- OSTI ID: 1334849
- Journal Information:
- Physical Review B, Vol. 94, Issue 21; ISSN 2469-9950
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 105 works
Citation information provided by
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