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Magnetic analog of the Fulde-Ferrell-Larkin-Ovchinnikov phase in Sr3Ru2O7

Berridge, AM; Grigera, SA; Simons, BD; Green, AG; (2010) Magnetic analog of the Fulde-Ferrell-Larkin-Ovchinnikov phase in Sr3Ru2O7. Physical Review B , 81 (5) , Article 054429. 10.1103/PhysRevB.81.054429. Green open access

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Abstract

The phase diagram of Sr3Ru2O7 contains a metamagnetic transition that bifurcates to enclose an anomalous phase with intriguing properties-a large resistivity with anisotropy that breaks the crystal-lattice symmetry. We propose that this is a magnetic analog of the spatially inhomogeneous superconducting Fulde-Ferrell-Larkin-Ovchinnikov state. Based on a microscopic theory of Stoner magnetism, we derive a Ginzburg-Landau expansion where the magnetization transverse to the applied field can become spatially inhomogeneous. We show that this reproduces the observed phase diagram of Sr3Ru2O7.

Type: Article
Title: Magnetic analog of the Fulde-Ferrell-Larkin-Ovchinnikov phase in Sr3Ru2O7
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevB.81.054429
Publisher version: http://dx.doi.org/10.1103/PhysRevB.81.054429
Language: English
Additional information: © APS 2010
Keywords: Quantum criticality, Electron metamagnetism, Weak ferromagnetism, Ruthenate Sr3Ru2O7, Itinerant, Transitions, Superconductivity, Disorder, Field, Mnsi
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > London Centre for Nanotechnology
URI: http://discovery.ucl.ac.uk/id/eprint/1332242
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