Stroboscopic Tests for Thermalization of Electrons in Pump-Probe Experiments
Abstract
One of the goals of pump-probe spectroscopies is to determine how electrons relax after they have been driven out of equilibrium. It is challenging to determine how close electrons are to a thermal state solely by fitting their distribution to a Fermi-Dirac distribution. Here, instead, we propose that one compare the effective temperatures of both fermions and collective bosonic modes (derived from the fermions) to determine the distance from a thermal state. Measurements of effective fermionic and bosonic temperatures can be achieved directly via photoemission and nonresonant Raman scattering. Their difference quantifies the distance from thermal equilibrium.
- Authors:
-
- Inst. for Condensed Matter Physics of the National Academy of Sciences of Ukraine, Lviv (Ukraine); Georgetown Univ., Washington, DC (United States). Dept. of Physics
- Inst. for Condensed Matter Physics of the National Academy of Sciences of Ukraine, Lviv (Ukraine)
- Stanford Univ., CA (United States). Geballe Lab. for Advanced Materials; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
- Georgetown Univ., Washington, DC (United States). Dept. of Physics
- Publication Date:
- Research Org.:
- SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1546740
- Alternate Identifier(s):
- OSTI ID: 1546414
- Grant/Contract Number:
- AC02-76SF00515; FG02-08ER46542; AC02-05CH11231; 17/2018; 7/2019
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Letters
- Additional Journal Information:
- Journal Volume: 122; Journal Issue: 24; Journal ID: ISSN 0031-9007
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS
Citation Formats
Matveev, O. P., Shvaika, A. M., Devereaux, T. P., and Freericks, J. K.. Stroboscopic Tests for Thermalization of Electrons in Pump-Probe Experiments. United States: N. p., 2019.
Web. doi:10.1103/physrevlett.122.247402.
Matveev, O. P., Shvaika, A. M., Devereaux, T. P., & Freericks, J. K.. Stroboscopic Tests for Thermalization of Electrons in Pump-Probe Experiments. United States. https://doi.org/10.1103/physrevlett.122.247402
Matveev, O. P., Shvaika, A. M., Devereaux, T. P., and Freericks, J. K.. Wed .
"Stroboscopic Tests for Thermalization of Electrons in Pump-Probe Experiments". United States. https://doi.org/10.1103/physrevlett.122.247402. https://www.osti.gov/servlets/purl/1546740.
@article{osti_1546740,
title = {Stroboscopic Tests for Thermalization of Electrons in Pump-Probe Experiments},
author = {Matveev, O. P. and Shvaika, A. M. and Devereaux, T. P. and Freericks, J. K.},
abstractNote = {One of the goals of pump-probe spectroscopies is to determine how electrons relax after they have been driven out of equilibrium. It is challenging to determine how close electrons are to a thermal state solely by fitting their distribution to a Fermi-Dirac distribution. Here, instead, we propose that one compare the effective temperatures of both fermions and collective bosonic modes (derived from the fermions) to determine the distance from a thermal state. Measurements of effective fermionic and bosonic temperatures can be achieved directly via photoemission and nonresonant Raman scattering. Their difference quantifies the distance from thermal equilibrium.},
doi = {10.1103/physrevlett.122.247402},
journal = {Physical Review Letters},
number = 24,
volume = 122,
place = {United States},
year = {2019},
month = {6}
}
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