Frequency dispersion of nonlinear response of thin superconducting films in the Berezinskii-Kosterlitz-Thouless state
Abstract
The effects of microwave radiation on transport properties of atomically thin La2-xSrxCuO₄ films were studied in the 0.1-20 GHz frequency range. Resistance changes induced by microwaves were investigated at different temperatures (8–15 K) near the superconducting transition. A strong decrease of the nonlinear response is observed within a few GHz of a cutoff frequency νcut ≈ 2GHz. The expected frequency dependence vastly underestimates the sharpness of this drop. Numerical simulations that assume ac response to follow dc V-I characteristics of the films reproduce well the low frequency behavior, but fail above νcut. Thus, high-frequency radiation is much less effective in inducing vortex-antivortex dissociation in the oscillating superconducting condensate.
- Authors:
-
- City College of the City Univ. of New York, New York, NY (United States)
- SUNY at Buffalo, Buffalo, NY (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1193194
- Alternate Identifier(s):
- OSTI ID: 1180792
- Report Number(s):
- BNL-107857-2015-JA
Journal ID: ISSN 1098-0121; PRBMDO; R&D Project: MA506MACA; KC0203020
- Grant/Contract Number:
- SC00112704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 91; Journal Issue: 6; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Dietrich, Scott, Mayer, William, Byrnes, Sean, Vitkalov, Sergey, Sergeev, A., Bollinger, Anthony T., and Božović, Ivan. Frequency dispersion of nonlinear response of thin superconducting films in the Berezinskii-Kosterlitz-Thouless state. United States: N. p., 2015.
Web. doi:10.1103/PhysRevB.91.060506.
Dietrich, Scott, Mayer, William, Byrnes, Sean, Vitkalov, Sergey, Sergeev, A., Bollinger, Anthony T., & Božović, Ivan. Frequency dispersion of nonlinear response of thin superconducting films in the Berezinskii-Kosterlitz-Thouless state. United States. https://doi.org/10.1103/PhysRevB.91.060506
Dietrich, Scott, Mayer, William, Byrnes, Sean, Vitkalov, Sergey, Sergeev, A., Bollinger, Anthony T., and Božović, Ivan. Fri .
"Frequency dispersion of nonlinear response of thin superconducting films in the Berezinskii-Kosterlitz-Thouless state". United States. https://doi.org/10.1103/PhysRevB.91.060506. https://www.osti.gov/servlets/purl/1193194.
@article{osti_1193194,
title = {Frequency dispersion of nonlinear response of thin superconducting films in the Berezinskii-Kosterlitz-Thouless state},
author = {Dietrich, Scott and Mayer, William and Byrnes, Sean and Vitkalov, Sergey and Sergeev, A. and Bollinger, Anthony T. and Božović, Ivan},
abstractNote = {The effects of microwave radiation on transport properties of atomically thin La2-xSrxCuO₄ films were studied in the 0.1-20 GHz frequency range. Resistance changes induced by microwaves were investigated at different temperatures (8–15 K) near the superconducting transition. A strong decrease of the nonlinear response is observed within a few GHz of a cutoff frequency νcut ≈ 2GHz. The expected frequency dependence vastly underestimates the sharpness of this drop. Numerical simulations that assume ac response to follow dc V-I characteristics of the films reproduce well the low frequency behavior, but fail above νcut. Thus, high-frequency radiation is much less effective in inducing vortex-antivortex dissociation in the oscillating superconducting condensate.},
doi = {10.1103/PhysRevB.91.060506},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 6,
volume = 91,
place = {United States},
year = {Fri Feb 20 00:00:00 EST 2015},
month = {Fri Feb 20 00:00:00 EST 2015}
}
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