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The European Physical Journal Special Topics

, Volume 228, Issue 3, pp 697–702 | Cite as

Unconventional magnetic field effect on noise properties of AlOx thin films in Kondo-like transport regime

  • Carlo BaroneEmail author
  • Hannes Rotzinger
  • Costantino Mauro
  • Dominik Dorer
  • Alexey V. Ustinov
  • Sergio Pagano
Regular Article
  • 14 Downloads
Part of the following topical collections:
  1. Superconductivity and Functional Oxides

Abstract

Granular aluminum oxide is an interesting material for application in quantum circuits. However, several issues regarding its normal state transport properties are still open. Here, detailed DC and noise transport measurements have been performed on thin films of granular Al oxide. The results evidence the presence of a Kondo-type resistivity increase at low temperatures, where specific excess 1/f noise is observed. The magnetic dependence of the excess noise further strengthens its connection with the Kondo mechanism.

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Copyright information

© EDP Sciences, Springer-Verlag GmbH Germany, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Dipartimento di Fisica “E.R. Caianiello” and CNR-SPIN Salerno, Università di SalernoFisciano, SalernoItaly
  2. 2.Physikalisches Institut, Karlsruhe Institute of TechnologyKarlsruheGermany
  3. 3.Dipartimento di Ingegneria, Università del SannioBeneventoItaly
  4. 4.Russian Quantum Center, National University of Science and Technology MISISMoscowRussia

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