Thermoelectric Effects in S-N-S Weak Links with Heavy Fermions as The Normal Metal: A Possibility for Thermosensors

Details Thermoelectric Effects in S-N-S Weak Links with Heavy Fermions as The Normal Metal: A Possibility for Thermosensors Thermoelectric Effects in S-N-S Weak Links with Heavy Fermions as The Normal Metal: A Possibility for Thermosensors

2000-11-22

arxiv.org/abs/cond-mat/0011385v1

Physics

Condensed Matter

Superconductivity

6 pages

Scientific paper

It is shown that S-N-S weak links with an heavy-fermion metal as the weak link (N) can be useful thermosensors. This property is due to the large thermopower of heavy-fermion metals which is of the order 10^(-6) V/K. The longitudinal sound can also generate voltage oscillation due to the large Grueneisen parameter, $\Omega_{hf}\sim 10^{2}$, in heavy-fermions. Similar effects are expected with other Kondo systems as the weak link.

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