Zeeman and orbital effects of an in-plane magnetic field in cuprate superconductors

Kun Yang, Shivaji Lal Sondhi

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5 Scopus citations


We discuss the effects of a magnetic field applied parallel to the Cu-O (ab) plane of the high Tc cuprate superconductors. After briefly reviewing the Zeeman effect of the field, we study the orbital effects, using the Lawrence-Doniach model for layered superconductors as a guide to the physics. We argue that the orbital effect is qualitatively different for in-plane and interlayer mechanisms for superconductivity. In the case of in-plane mechanisms, interlayer couplings may be modeled as a weak interlayer Josephson coupling, whose effects disappear as H→∞; in this case Zeeman dominates the effect of the field. In contrast, in the interlayer mechanism the Josephson coupling is the driving force of superconductivity, and we argue that the in-plane field suppresses superconductivity and provides an upper bound for Hc2 which we estimate very crudely.

Original languageEnglish (US)
Pages (from-to)5549-5551
Number of pages3
JournalJournal of Applied Physics
Issue number9 II
StatePublished - May 2000
Event44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States
Duration: Nov 15 1999Nov 18 1999

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy


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