Power law specific heat divergence in Sr3Ru2O7

Rost, A. W.; Berridge, A. M.; Perry, R. S.; Mercure, J-F.; Grigera, S. A.; Mackenzie, A. P.

doi:10.1002/pssb.200983068

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Power law specific heat divergence in Sr₃Ru₂O₇

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Rost, A. W., Berridge, A. M., Perry, R. S., Mercure, J.-F., Grigera, S. A., & Mackenzie, A. P. (2010). Power law specific heat divergence in Sr₃Ru₂O₇. Physica Status Solidi B, 247(3), 513-515. doi:10.1002/pssb.200983068.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-F276-9

Abstract

We present measurement and analysis of field-dependent specific heat measurements on Sr3Ru2O7, showing that, at low temperatures, an incipient divergence is cut off by the formation of a new phase previously identified to show the transport properties of an electronic nematic. We discuss how to interpret a specific heat divergence in a system with van Hove singularities, and caution against a simple-minded comparison of experimentally determined power laws with the predictions of quantum critical theories. (C) 2010 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim