Document Type

Article

Publication Date

1-1-1975

Publication Title

Journal of Chemical Physics

Volume

62

First Page

967

Last Page

972

DOI

10.1063/1.430512

Keywords

Properties, HxTaS2

Disciplines

Chemistry | Physical Chemistry

Abstract

The preparation of Hx TaS2 (0 < x < 0.87) is described. The compounds are only marginally stable at room temperature, slowly evolving H2S and H2 (and possibly Hp in air). Magnetic susceptibility data show that a low temperature transformation in 2H ... TaS2 (at so•K) is suppressed with the addition of hydrogen, and· at the same time the superconducting transition temperature T c rises from 0.8 to ~4.2•K at x = 0.11. Heat capacity measurements near this concentration show the superconductivity to be a bulk effect. Finally, by correlation of this data with susceptibility and T c measurements in other intercalation compounds, we suggest that the rise of T c (at low electron transfer) is due to suppression of the low temperature transformation and not due to an excitonic mechanism of superconductivity.

Comments

Copyright © 1975 American Institute of Physics. The published version of the article can be found online at: http://dx.doi.org/10.1063/1.430512.

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