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

BJ Powell; JF Annett; BL Gyorffy

doi:10.1007/3-540-45814-X_4

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

BJ Powell, JF Annett, BL Gyorffy

School of Physics

Research output: Chapter in Book/Report/Conference proceeding › Chapter 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 contribution	The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field
Original language	English
Title of host publication	Ruthenate and Rutheno-Cuprate Materials
Subtitle of host publication	Unconventional Superconductivity, Magnetism and Quantum Phase Transitions
Editors	C Noce, M Cuoco, A Romano, A Vecchione
Publisher	Springer Berlin Heidelberg
Pages	46-59
Number of pages	14
ISBN (Electronic)	9783540458142
ISBN (Print)	9783540442752
DOIs	https://doi.org/10.1007/3-540-45814-X_4
Publication status	Published - 2002

Publication series

Name	Lecture Notes in Physics
Volume	603

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Powell, BJ., Annett, JF., & Gyorffy, BL. (2002). The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field. In C. Noce, M. Cuoco, A. Romano, & A. Vecchione (Eds.), Ruthenate and Rutheno-Cuprate Materials: Unconventional Superconductivity, Magnetism and Quantum Phase Transitions (pp. 46-59). ( Lecture Notes in Physics; Vol. 603). Springer Berlin Heidelberg. https://doi.org/10.1007/3-540-45814-X_4

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title = "The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field",

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.",

author = "BJ Powell and JF Annett and BL Gyorffy",

year = "2002",

doi = "10.1007/3-540-45814-X_4",

language = "English",

isbn = "9783540442752",

series = " Lecture Notes in Physics",

publisher = "Springer Berlin Heidelberg",

pages = "46--59",

editor = "C Noce and M Cuoco and A Romano and A Vecchione",

booktitle = "Ruthenate and Rutheno-Cuprate Materials",

address = "Germany",

}

Powell, BJ, Annett, JF & Gyorffy, BL 2002, The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field. in C Noce, M Cuoco, A Romano & A Vecchione (eds), Ruthenate and Rutheno-Cuprate Materials: Unconventional Superconductivity, Magnetism and Quantum Phase Transitions. Lecture Notes in Physics, vol. 603, Springer Berlin Heidelberg, pp. 46-59. https://doi.org/10.1007/3-540-45814-X_4

The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field. / Powell, BJ; Annett, JF; Gyorffy, BL.

Ruthenate and Rutheno-Cuprate Materials: Unconventional Superconductivity, Magnetism and Quantum Phase Transitions. ed. / C Noce; M Cuoco; A Romano; A Vecchione. Springer Berlin Heidelberg, 2002. p. 46-59 ( Lecture Notes in Physics; Vol. 603).

Research output: Chapter in Book/Report/Conference proceeding › Chapter in a book

TY - CHAP

T1 - The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field

AU - Powell, BJ

AU - Annett, JF

AU - Gyorffy, BL

PY - 2002

Y1 - 2002

N2 - 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.

AB - 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.

U2 - 10.1007/3-540-45814-X_4

DO - 10.1007/3-540-45814-X_4

M3 - Chapter in a book

SN - 9783540442752

T3 - Lecture Notes in Physics

SP - 46

EP - 59

BT - Ruthenate and Rutheno-Cuprate Materials

A2 - Noce, C

A2 - Cuoco, M

A2 - Romano, A

A2 - Vecchione, A

PB - Springer Berlin Heidelberg

ER -

Powell BJ, Annett JF, Gyorffy BL. The Behaviour of a Triplet Superconductor in a 'spin-only' Magnetic Field. In Noce C, Cuoco M, Romano A, Vecchione A, editors, Ruthenate and Rutheno-Cuprate Materials: Unconventional Superconductivity, Magnetism and Quantum Phase Transitions. Springer Berlin Heidelberg. 2002. p. 46-59. ( Lecture Notes in Physics). https://doi.org/10.1007/3-540-45814-X_4

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

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