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Electron-phonon decoupling in the photoresponse of YBaCuO granular films at low temperature (1992)

Maneval, J.-P. ; Chibane, F. ; Bland, R. W.

Woodbury, NY : American Institute of Physics (AIP)

Applied Physics Letters 61 (1992), S. 339-341

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ISSN: 1077-3118

Quelle: AIP Digital Archive

Thema: Physik

Notizen: Granular YBaCuO films in their current-induced dissipative state were exposed to light pulses of small fluence and the decay of the photoresistance was observed on the nanosecond time scale in the range 1 K〈T〈35 K. The response appears bolometric down to 10 K. Below, we resolve a second decay rate having a temperature dependence characteristic of the electron-phonon interaction. Using the known lattice specific heat as a reference, we deduce the Sommerfeld coefficient (γ=2.5 mJ/K2 mol) of the electronic specific heat.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1063/1.107930

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