J. Phys. I France
Volume 1, Numéro 10, October 1991
Page(s) 1375 - 1379
DOI: 10.1051/jp1:1991209
J. Phys. I France 1 (1991) 1375-1379

Hydrostatic pressure effect on $T{_{\mathsf c}}$ and resistance anomaly in normal state of $\kappa$-(BEDT-TTF) 2CuN(CN) 2Br

Yu. V. Sushko1, V.A. Bondarenko1, R.A. Petrosov1, N.D. Kushch2 and E.B. Yagubskii2

1  Institute of Semiconductors, Ukrainian Academy of Sciences, Kiev 252650, Ukraine, U.S.S.R.
2  Institute of Chemical Physics, Academy of Science of the USSR, Chernogolovka, 142432, U.S.S.R.

(Received 21 May 1991, revised 19 June 1991, accepted 31 July 1991)

The pressure effect on the temperature dependence of the resistivity and superconducting transition temperature for organic superconductor is studied. Pronounced anomalies of normal state (resistivity maximum near 80 K and inflection of R(T) curve at $\sim 50$ K) are found strongly suppressed under pressure and disappearing at P>560 bar. Simultaneously, a linear and monotonic decrease of $T_{\rm c}$ in the pressure range up to 750 bar is observed.

© Les Editions de Physique 1991

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