The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field

BJ Powell, JF Annett, BL Gyorffy

Research output: Chapter in Book/Report/Conference proceedingChapter in a book

Abstract

We investigate the order parameter of Sr2RuO4 in an exchange-only magnetic field. A Ginzburg-Landau symmetry analysis implies three possibilities: a pure 3He A phase, a 3He A1 or a 3He A2 phase. We explore the exchange field dependence of the order parameter and energy gap in a one-band model of Sr2RuO4. The numerical solutions show no A1 phase and that the A2 phase is lower in free energy than the A phase. We explore heat capacity as a function of temperature and field strength and find quantitatively different behaviours for the A and A2 phases.
Translated title of the contributionThe Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field
Original languageEnglish
Title of host publicationRuthenate and Rutheno-Cuprate Materials
Subtitle of host publicationUnconventional Superconductivity, Magnetism and Quantum Phase Transitions
EditorsC Noce, M Cuoco, A Romano, A Vecchione
PublisherSpringer Berlin Heidelberg
Pages46-59
Number of pages14
ISBN (Electronic)9783540458142
ISBN (Print)9783540442752
DOIs
Publication statusPublished - 2002

Publication series

Name Lecture Notes in Physics
Volume603

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