Home > Publications database > Proposed Parametric Cooling of Bilayer Cuprate Superconductors by Terahertz Excitation |
Journal Article | PUBDB-2016-03066 |
; ; ; ;
2015
APS
College Park, Md.
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Please use a persistent id in citations: doi:10.1103/PhysRevLett.114.137001
Abstract: We propose and analyze a scheme for parametrically cooling bilayer cuprates based on the selective driving of a c-axis vibrational mode. The scheme exploits the vibration as a transducer making the Josephson plasma frequencies time dependent. We show how modulation at the difference frequency between the intrabilayer and interbilayer plasmon substantially suppresses interbilayer phase fluctuations, responsible for switching c-axis transport from a superconducting to a resistive state. Our calculations indicate that this may provide a viable mechanism for stabilizing nonequilibrium superconductivity even above T$_c$, provided a finite pair density survives between the bilayers out of equilibrium.
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