Anomalous magnetoresistance of ultrathin films of DyBa2Cu3O7-x near the superconductor-insulator transition

T. Wang, K. M. Beauchamp, A. M. MacK, N. E. Israeloff, G. C. Spalding, A. M. Goldman

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

An anomalous peak in the magnetoresistance was observed in granular ultrathin films of DyBa2Cu3O7-x whose low-temperature behaviors span the zero-field superconductor-insulator transition. The magnitude of this peak increased with the weakening of the superconductivity of the films. Frustration effects in a Josephson coupled superconducting array are not sufficient to account for the peak. Instead, this unusual behavior may result from an interaction of the carriers with antiferromagnetically ordered Cu2+ ions on the copper-oxygen sheets, providing a crucial link between superconductivity and magnetism.

Original languageEnglish (US)
Pages (from-to)11619-11622
Number of pages4
JournalPhysical Review B
Volume47
Issue number17
DOIs
StatePublished - Jan 1 1993

Fingerprint Dive into the research topics of 'Anomalous magnetoresistance of ultrathin films of DyBa2Cu3O7-x near the superconductor-insulator transition'. Together they form a unique fingerprint.

Cite this