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Nernst effect and its thickness dependence in superconducting NbN films
Thomas Bouteiller, Arthur Marguerite, Ramzy Daou, Dmitry Yakovlev, Cheryl Feuillet-Palma, Dimitri Roditchev, Beno\^it Fauqu\'e, Kamran Behnia
https://arxiv.org/abs/2506.03975

Nernst effect and its thickness dependence in superconducting NbN films
Superconducting thin films and layered crystals display a Nernst signal generated by short-lived Cooper pairs above their critical temperature. Several experimental studies have broadly verified the standard theory invoking Gaussian fluctuations of a two-dimensional superconducting order parameter. Here, we present a study of the Nernst effect in granular NbN thin films with a thickness varying from 4 to 30 nm, exceeding the short superconducting coherence length and putting the system in the t…