Document Type

Article

Publication Date

1-1-1992

Publication Title

Physical Review Letters

Abstract

We present here direct calorimetric evidence for a new transition at T*=22.25 K in the metallic state of quasi-2D organic superconductor -(BEDT-TTF)2I3 at ambient pressure, as suggested by our previous measurement of the temperature-dependent Hall coefficient RH(T). The apparent reduction in the effective electronic density of states at T* quantitatively explains for the first time the suppression of Tc from the pressure-stabilized eehigh-Tcee value of 8 K to the ambient-pressure cooled eelow-Tcee value of 1.5 K.

Volume

68

Issue

19

First Page

2933

Last Page

2936

DOI

10.1103/PhysRevLett.68.2933

ISSN

00319007

Rights

© 1992 The American Physical Society.

Comments

Archived as published.

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