Transport and magnetic anomalies below 70K in a hydrogen-cycled Pd foil with a thermally grown oxide

Andrei Lipson, Brent J. Heuser, Carlos Castano, George Miley, Boris Lyakhov, Alexander Mitin

Research output: Contribution to journalArticle

Abstract

Electron transport and magnetic properties have been studied in a deformed 12.5-μm-thick Pd foil with a thermally-grown oxide and a low residual concentration of hydrogen. This foil was deformed by cycling across the Pd hydride miscibility gap and the residual hydrogen was trapped at dislocation cores. Anomalies of both resistance and magnetic susceptibility have been observed below 70K, indicating the appearance of excess conductivity and a diamagnetic response that we interpret in terms of filamentary superconductivity. These anomalies are attributed to a condensed hydrogen-rich phase at dislocation cores near the Pd-Pd oxide interface.

Original languageEnglish (US)
Article number212507
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume72
Issue number21
DOIs
StatePublished - Dec 1 2005

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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