A magnetic analogue of the superconducting FFLO state in Sr3Ru2O7

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• Andrew Berridge (University of Birmingham)
• Friday 11 December 2009, 13:00-14:00
• Theory Library.

If you have a question about this talk, please contact Prof Andy Schofield.

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 analogue 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 magnetisation transverse to the applied field can become spatially inhomogeneous. We show that this reproduces the observed phase diagram of Sr3Ru2O7.

This talk is part of the Theoretical Physics Journal Club and Group Meeting series.

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• Theoretical Physics Journal Club and Group Meeting
• Theory Library

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