Structural phase transition and superconducting properties of ${Th}_{3}$ $P_{4}$ -type La chalcogenides

1 September 1985

journal article
research article
Published by American Physical Society (APS) in Physical Review B

Vol. 32 (5) , 2985-2992
https://doi.org/10.1103/physrevb.32.2985

Abstract

We report measurements of the electrical resistivity and the specific heat at the structural transition and in the superconducting state at low temperatures for samples with composition

{La}_{3 - x}

S_{4}

{La}_{3 - x}

{Se}_{4}

, and

{La}_{3}

{Te}_{4}

. The results show that the structural transition and the anomalous superconducting properties of

{La}_{3}

S_{4}

and

{La}_{3}

{Se}_{4}

are due to a band-structure anomaly at the Fermi level.

Keywords

This publication has 14 references indexed in Scilit:

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Structural phase transition and superconducting properties ofTh3P4-type La chalcogenides

Abstract

Keywords

Structural phase transition and superconducting properties of ${Th}_{3}$ $P_{4}$ -type La chalcogenides