Experimental test for subdominant superconducting phases with complex order parameters in cuprate grain boundary junctions

Research output: Contribution to journalArticle


An experiment to test the formation of subdominant superconducting phases with broken time-reversal symmetry in d-wave superconductors was presented. The variation of the critical current of grain boundary junctions with temperature and magnetic fields was measured to study the formation of a complex order parameter along the surface of YBa2Cu3O7-x films. The onset of a superconducting order parameter was found to affect the magnitude and magnetic field diffraction patterns of the supercurrents.

Original languageEnglish (US)
Article number047001
Pages (from-to)470011-470014
Number of pages4
JournalPhysical review letters
Issue number4
StatePublished - Jan 28 2002


ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this