Enhancement in spin-dependent tunneling with Coulomb blockade

S. Takahashi, S. Maekawa

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


We study theoretically the magnetoresistance (MR) in two types of magnetic nanostructure systems: single-electron transistors (SET) and insulating granular ferromagnets. In both systems the MR is enhanced at low temperatures and the enhanced MR is maintained up to higher voltages, due to higher-order processes of spin-dependent tunneling between electrodes or granules with strong Coulomb blockade. The temperature and bias-voltage dependence of the MR are in consistent with recent experiments made on the two systems.

Original languageEnglish
Pages (from-to)143-145
Number of pages3
JournalJournal of Magnetism and Magnetic Materials
Publication statusPublished - 1999 Jun 1
Externally publishedYes
EventProceedings of the 1998 3rd International Symposium on Metallic Multilayers (MML-98) - Vancouver, BC, Can
Duration: 1998 Jun 141998 Jun 19

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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