Abstract
The influence of the Fermi surface anisotropy on the specific heat jump is studied for the p-wave superconductor with a gap function d = z^(k x ± ik y ) in connection with Sr2RuO4. It is shown that the normalized specific heat jump, ΔC/γT c , is reduced from its “universal” value, 1.43, in accordance with experimental findings. We show that this behavior fits well into our present understanding of the quasiparticle spectrum and the impurity effects.
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