Title

Is the anisotropy of the upper critical field of Sr2RuO4 consistent with a helical p-wave state?

Authors

Authors

J. Phys.-Condes. Matter

Comments

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Abbreviated Journal Title

Appl. Cogn. Psychol.

Keywords

superconductivity; triplet pairing; helical p-wave states; upper; critical field; strontium ruthenate; O-17 KNIGHT-SHIFT; MAGNETIC-FIELDS; SUPERCONDUCTIVITY; TEMPERATURE; LIQUID-HE-3; PHASE; LIMIT; HE-3; Physics, Condensed Matter

Abstract

We calculate the angular and temperature T dependencies of the upper critical field H-c2(theta, phi, T) for the C-4v 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 H-c2, a(theta, T) data of Kittaka et al (2009 Phys. Rev. B 80 174514) are obtained. Helical states with d(k)= k(x)x - k(y)y and k(y)x + k(x)y (or k(x)x + k(y)y and k(y)x - k(x)y) produce H-c2(90 degrees, phi, 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.

Subjects

J. Zhang; C. Lorscher; Q. Gu;R. A. Klemm

Volume

26

Issue/Number

25

Publication Date

1-1-2014

Document Type

Article

Language

English

First Page

5

WOS Identifier

WOS:000337348900001

ISSN

0953-8984

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