Surface Phase Transitions and Order in Frustrated Magnets (a talk to be presented at the Novel Aspects of Surfaces and Materials Conference (nasm.iop.org) )

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• Mel Hopper
• Monday 12 April 2010, 13:00-14:00
• Theory Library.

If you have a question about this talk, please contact Andrew Berridge.

I propose a new type of magnetic spin reconstruction whereby a new symmetry appears on the near-surface of the material. As a consequence, there exists an associated magnetic ordering transition that occurs at a temperature lower than the bulk ordering temperature, a novel transition that has previously not been thought possible.

The phase diagram of a 2D model that exhibits the phenomenon is presented and shown to map to FCC lattices with nearest neighbour coupling. Materials expected to exhibit the reconstruction are discussed.

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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