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Grain-superconductivity effect on electrical conduction in insulating granular films

  • Ju Jin Kim*
  • , Jinhee Kim
  • , Hu Jong Lee
  • *Corresponding author for this work
  • Pohang University of Science and Technology

Research output: Contribution to journalJournal articlepeer-review

Abstract

We report the low-temperature conduction properties of indium/indium-oxide composite granular films in the insulating regime. The films show much stronger temperature dependence of resistance and large negative magnetoresistance below the superconducting transition temperature Tc of the grains. The behavior is well explained by a grain-superconductivity effect.

Original languageEnglish
Pages (from-to)1349-1350
Number of pages2
JournalPhysica B: Physics of Condensed Matter
Volume194-196
Issue numberPART 1
DOIs
StatePublished - 1994.02.2

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