Title

Is The Anisotropy Of The Upper Critical Field Of Sr2Ruo 4 Consistent With A Helical P-Wave State?

Keywords

helical p-wave states; strontium ruthenate; superconductivity; triplet pairing; upper critical field

Abstract

We calculate the angular and temperature T dependencies of the upper critical field Hc2(θ, φ, T) for the C4v point group helical p-wave states, assuming a single uniaxial ellipsoidal Fermi surface, Pauli limiting and strong spin-orbit coupling that locks the spin-triplet d-vectors onto the layers. Good fits to the Sr2RuO4 Hc2,a(θ, T) data of Kittaka et al (2009 Phys. Rev. B 80 174514) are obtained. Helical states with and (or and ) produce Hc2(90°, φ, T) that greatly exceed (or do not exhibit) the fourfold azimuthal anisotropy magnitudes observed in Sr2RuO4 by Kittaka et al and by Mao et al (2000 Phys. Rev. Lett. 84 991), respectively. © 2014 IOP Publishing Ltd.

Publication Date

6-25-2014

Publication Title

Journal of Physics Condensed Matter

Volume

26

Issue

25

Number of Pages

-

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1088/0953-8984/26/25/252201

Socpus ID

84901788792 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/84901788792

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