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Inhomogeneous Phase Formation on the Border of Itinerant Ferromagnetism

Conduit, GJ; Green, AG; Simons, BD; (2009) Inhomogeneous Phase Formation on the Border of Itinerant Ferromagnetism. PHYS REV LETT , 103 (20) , Article 207201. 10.1103/PhysRevLett.103.207201. Green open access

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Abstract

A variety of analytical techniques suggest that quantum fluctuations lead to a fundamental instability of the Fermi liquid that drives ferromagnetic transitions first order at low temperatures. We present both analytical and numerical evidence that, driven by the same quantum fluctuations, this first order transition is preempted by the formation of an inhomogeneous magnetic phase. This occurs in a manner that is closely analogous to the formation of the inhomogeneous superconducting Fulde-Ferrel-Larkin-Ovchinnikov state. We derive these results from a field-theoretical approach supplemented with numerical quantum Monte Carlo simulations.

Type: Article
Title: Inhomogeneous Phase Formation on the Border of Itinerant Ferromagnetism
Open access status: An open access version is available from UCL Discovery
DOI: 10.1103/PhysRevLett.103.207201
Publisher version: http://dx.doi.org/10.1103/PhysRevLett.103.207201
Language: English
Additional information: © 2009 The American Physical Society
Keywords: QUANTUM CRITICALITY, ELECTRON-GAS, FERMI GAS, TEMPERATURE, STATE, SUPERCONDUCTIVITY, BEHAVIOR, SYSTEMS, MODEL, UGE2
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/1333462
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