Noise measurement of YBa2Cu3O7−x and Ti2Ba2Ca2Cu3O10−x thin films

1 January 1991

journal article
letter
Published by AIP Publishing in Journal of Applied Physics

Vol. 69 (1) , 553-555
https://doi.org/10.1063/1.347655

Abstract

The noise of YBa₂Cu₃O_7−x and Tl₂Ba₂Cr₂Cu₃O_10−x thin films in the frequency range from 0.5 Hz to 100 kHz was studied. In the normal state, it was found that 1/f noise dominated, with a magnitude strongly dependent on temperature. In the superconducting state, the noise was only observable at frequencies below 5 Hz with our present setup. Equilibrium thermal fluctuation noise was not observed in these films.

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