GREPhysics.NET: GR9677 #95

GR9677 #95

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Advanced Topics $\Rightarrow$ }Solid State Physics

The specific heat of a superconductor jumps at the critical temperature (c.f. with its resistivity jump).

Ordinarily, the specific heat of a metal is $c=aT+bT^3$ . When it is superconducting, the first term, the electronic-contribution, is replaced by $\approx e^{-cT}$ . The revised plot of the specific heat has a jump from an exponentially increasing specific heat to a much lower value somewhere in the range for positive T.

Reference: Ibach and Luth p 270ff

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Comments

lathena 2009-10-04 15:46:48	So then the answer is (E), correct? Reply to this comment
sharpstones 2007-04-06 15:01:10	It's good to know that a phase transition is characterized by a discontinuous jump in a physical quantity. The switchover from normal metal to superconducting state is a phase transition and is characterized by a discontinuous jump in the Heat Capacity. Reply to this comment

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