Numéro
J. Phys. I France
Volume 2, Numéro 5, May 1992
Page(s) 517 - 522
DOI https://doi.org/10.1051/jp1:1992162
DOI: 10.1051/jp1:1992162
J. Phys. I France 2 (1992) 517-522

Conductivity coherence peak in YBa 2Cu 3O 7

O. Klein1, K. Holczer1, G. Grüner1 and G.A. Emelchenko2

1  UCLA, Department of Physics, Los Angeles, CA 90024, U.S.A.
2  Academy of Sciences, 142432 Chernogolovka, Moscow, Russia


(Received 20 January 1992, accepted in final form 6 March 1992)

Abstract
We have measured both the surface resistance $R_{\rm s}$ and the surface reactance $X_{\rm s}$ of a YBa 2Cu 3O 7 single crystal at millimeter wave frequencies and have evaluated the conductivity $\sigma_1$. We observe a narrow coherence peak below $T_{\rm c}$ which indicates s-wave pairing with a rapid opening of the single particle gap.



© Les Editions de Physique 1992

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.