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Power law specific heat divergence in Sr 3 Ru 2 O 7
Author(s) -
Rost A. W.,
Berridge A. M.,
Perry R. S.,
Mercure J.F.,
Grigera S. A.,
Mackenzie A. P.
Publication year - 2010
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200983068
Subject(s) - divergence (linguistics) , gravitational singularity , condensed matter physics , specific heat , physics , power law , phase (matter) , quantum , thermodynamics , quantum mechanics , mathematics , philosophy , linguistics , statistics
We present measurement and analysis of field‐dependent specific heat measurements on Sr 3 Ru 2 O 7 , 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.