Electric field effects on vortex dynamics in ultrathin YBa2Cu3O7-δ films

A. Walkenhorst, C. Doughty, X. X. Xi, Qi Li, C. J. Lobb, S. N. Mao, T. Venkatesan

Research output: Contribution to journalArticlepeer-review

41 Scopus citations

Abstract

The effects of charge-carrier density modulation on critical currents and vortex dynamics in ultrathin YBa2Cu3O7-δ films were investigated through transport measurements in field-effect devices. Two distinct dissipation regions in resistive transitions in applied magnetic fields are identified by the electric-field effect. A Kosterlitz-Thouless-like transition is observed in zero magnetic field, which can be tuned by the electric field. The importance of thermal fluctuations for the dissipation in high-Tc superconductors is stressed.

Original languageEnglish (US)
Pages (from-to)2709-2712
Number of pages4
JournalPhysical review letters
Volume69
Issue number18
DOIs
StatePublished - 1992

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Fingerprint

Dive into the research topics of 'Electric field effects on vortex dynamics in ultrathin YBa2Cu3O7-δ films'. Together they form a unique fingerprint.

Cite this