Etude des inhomogénéités électroniques à l'échelle nanoscopique dans des films supraconducteurs ultra-minces de NbN
| Autor: | Aberkane, Clementine |
|---|---|
| Přispěvatelé: | Institut des Nanosciences de Paris (INSP), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Université Pierre et Marie Curie - Paris VI, Dimitri Roditchev, Christophe Brun |
| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: |
Films ultra-Minces
Disordered superconductors Detecteur de photon unique Superconductor-insulator transition NbN [PHYS.MECA.SOLID]Physics [physics]/Mechanics [physics]/Solid mechanics [physics.class-ph] Supraconducteurs désordonnés Transition supraconducteur-Isolant Microscopie et spectroscopie à effet tunnel (STM/STS) [PHYS.MECA.SOLID]Physics [physics]/Mechanics [physics]/Mechanics of the solides [physics.class-ph] |
| Zdroj: | Mechanics of the solides [physics.class-ph]. Université Pierre et Marie Curie-Paris VI, 2014. English. ⟨NNT : 2014PA066644⟩ Solid mechanics [physics.class-ph]. Université Pierre et Marie Curie-Paris VI, 2014. English. ⟨NNT : 2014PA066644⟩ |
| Popis: | In order to better understand the various processes taking place at the superconductor-insulator transition (SIT), we have probed simultaneously the global and local electronic properties of NbN ultrathin films, elaborated ex-situ on sapphire substrate. The transition was approached by reducing the films thickness, increasing the normal state square resistance to several kiloOhms. The corresponding Tc's of the studied films ranged from about Tc≈15K, which is close to TC-bulk, to Tc≈3.8K (Tc/TC-bulk≈0.23). In the range 0.4TC-bulk |
| Databáze: | OpenAIRE |
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