One hump or two?  Stoner's camel as a model of UGe2

KG Sandeman; GG Lonzarich; Andrew Schofield

One hump or two? Stoner's camel as a model of UGe2

KG Sandeman, GG Lonzarich, Andrew Schofield

Research output: Contribution to journal › Article

Abstract

We present a model of changing Fermi surface geometry in a ferromagnetic, spin-split environment, where the control parameter is the Stoner exchange energy. A two-peak density of states, here obtained from a quasione-dimensional bandstructure allows two jumps in magnetisation. The jump at finite magnetisation can be first order, and may occur near a maximum in the transition temperature for a triplet superconducting instability. Our motivation is the ferromagnetic superconductor, UGe2.

Original language	English
Pages (from-to)	511-514
Number of pages	4
Journal	Acta Physica Polonica B
Volume	34
Issue number	2
Publication status	Published - 1 Feb 2003

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title = "One hump or two? Stoner's camel as a model of UGe2",

abstract = "We present a model of changing Fermi surface geometry in a ferromagnetic, spin-split environment, where the control parameter is the Stoner exchange energy. A two-peak density of states, here obtained from a quasione-dimensional bandstructure allows two jumps in magnetisation. The jump at finite magnetisation can be first order, and may occur near a maximum in the transition temperature for a triplet superconducting instability. Our motivation is the ferromagnetic superconductor, UGe2.",

author = "KG Sandeman and GG Lonzarich and Andrew Schofield",

year = "2003",

month = feb,

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language = "English",

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pages = "511--514",

journal = "Acta Physica Polonica B",

publisher = "Jagellonian University",

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T1 - One hump or two? Stoner's camel as a model of UGe2

AU - Sandeman, KG

AU - Lonzarich, GG

AU - Schofield, Andrew

PY - 2003/2/1

Y1 - 2003/2/1

N2 - We present a model of changing Fermi surface geometry in a ferromagnetic, spin-split environment, where the control parameter is the Stoner exchange energy. A two-peak density of states, here obtained from a quasione-dimensional bandstructure allows two jumps in magnetisation. The jump at finite magnetisation can be first order, and may occur near a maximum in the transition temperature for a triplet superconducting instability. Our motivation is the ferromagnetic superconductor, UGe2.

AB - We present a model of changing Fermi surface geometry in a ferromagnetic, spin-split environment, where the control parameter is the Stoner exchange energy. A two-peak density of states, here obtained from a quasione-dimensional bandstructure allows two jumps in magnetisation. The jump at finite magnetisation can be first order, and may occur near a maximum in the transition temperature for a triplet superconducting instability. Our motivation is the ferromagnetic superconductor, UGe2.

M3 - Article

VL - 34

SP - 511

EP - 514

JO - Acta Physica Polonica B

JF - Acta Physica Polonica B

IS - 2

ER -

One hump or two? Stoner's camel as a model of UGe2

Abstract

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