Structural Phase Transition in the Superconducting Pyrochlore Oxide Cd2Re2O7

Preprint

4 September 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0109050

Abstract

We report a structural phase transition found at Ts = 200 K in a pyrochlore oxide Cd2Re2O7 which shows superconductivity at Tc = 1.0 K. X-ray diffractionexperiments indicate that the phase transition is of the second order, from a high-temperature phase with the ideal cubic pyrochlore structure (space group Fd-3m) to a low-temperature phase with another cubic structure (space group F-43m). It is accompanied by a dramatic change in the resistivity and magnetic susceptibility and thus must induce a significant change in the electronic structure of Cd2Re2O7.

Keywords

STRUCTURAL PHASE TRANSITION
SUPERCONDUCTING PYROCHLORE
PYROCHLORE OXIDE CD2RE2O7
RESISTIVITY

All Related Versions

Version 1, 2001-09-04, ArXiv
Published version: Journal of Physics and Chemistry of Solids, 63 (6-8), 1027.

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