Anisotropy of the superconducting state in Sr2RuO4

C. Rastovski, C. D. Dewhurst, W. J. Gannon, D. C. Peets, H. Takatsu, Y. Maeno, M. Ichioka, K. Machida, M. R. Eskildsen

    Research output: Contribution to journalArticlepeer-review

    27 Citations (Scopus)

    Abstract

    Despite intense studies the exact nature of the order parameter in superconducting Sr2RuO4 remains unresolved. We have used small-angle neutron scattering to study the vortex lattice in Sr 2RuO4 with the field applied close to the basal plane, taking advantage of the transverse magnetization. We measured the intrinsic superconducting anisotropy between the c axis and the Ru-O basal plane (∼60), which greatly exceeds the upper critical field anisotropy (∼20). Our result imposes significant constraints on possible models of triplet pairing in Sr2RuO4 and raises questions concerning the direction of the zero spin projection axis.

    Original languageEnglish
    Article number087003
    JournalPhysical Review Letters
    Volume111
    Issue number8
    DOIs
    Publication statusPublished - Aug 22 2013

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Fingerprint

    Dive into the research topics of 'Anisotropy of the superconducting state in Sr<sub>2</sub>RuO<sub>4</sub>'. Together they form a unique fingerprint.

    Cite this