Screening and conductance relaxations in insulating granular aluminium thin films

Autor: Thierry Grenet, Julien Delahaye
Přispěvatelé: Magnétisme et Supraconductivité (MagSup), Institut Néel (NEEL), Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)
Jazyk: angličtina
Rok vydání: 2012
Předmět:
Zdroj: Journal of Physics: Conference Series
Journal of Physics: Conference Series, IOP Publishing, 2012, 376, pp.012008. ⟨10.1088/1742-6596/376/1/012008⟩
ISSN: 1742-6588
1742-6596
DOI: 10.1088/1742-6596/376/1/012008⟩
Popis: We have recently found in insulating granular Al thin film a new experimental feature (Delahaye et al., Phys. Rev. Lett. 106, 186602, 2011), namely the existence of a conductance relaxation that is not sensitive to gate voltage changes. This conductance relaxation is related to the existence of a metallic-like screening in the film and can be used to estimate its characteristic length scale. In the present paper, we give some experimental details on how this feature was measured and present our first results on the screening length temperature dependence.
Comment: 14th Transport in interacting disordered systems (TIDS14) conference, September 5-8 2011, Acre (Israel)
Databáze: OpenAIRE