Theory of elastic properties of Sr2RuO4 at the superconducting transition temperature

Physical Review B - Condensed Matter and Materials Physics

Volumn 66, Issue 21, 2002, Pages 2145081-2145085

  Walker, M B ^a   Contreras, Pedro ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

FERROMAGNETIC MATERIAL;

ANALYTIC METHOD; ARTICLE; COMPLIANCE (PHYSICAL); ELASTICITY; MAGNETISM; MEASUREMENT; OXIDATIVE STRESS; PHASE TRANSITION; SEMICONDUCTOR; TEMPERATURE DEPENDENCE; THERMAL ANALYSIS; THERMODYNAMICS;

EID: 0036977894     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

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21. This point does not seem to have been noted previously. For example, in Refs. 18-20 a number of Ehrenfest relations are given, which are presumably supposed to be valid at zero stress, but which contain derivaties of the critical temperature with respect to a symmetry-breaking strain. These results disagree in principle with our work, in which a non-zero static symmetry-breaking stress is first applied to split the zero-stress phase transition into two transitions, before deriving Ehrenfest relations that apply at each of the split transitions (see Fig. 1).
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