Nanocontact magnetoresistance and quantized conductance

K. Sekiguchi, E. Saitoh, H. Miyajima

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The behavior of the magnetoresistance (MR) effect in a ferromagnetic Ni nanocontact is investigated in the regime of conductance quantization (1/12900 Ω-1). The giant MR effect is observed in the case that the nanocontact with quantized conductance is fabricated. We sometimes observe that the conductance discretely changes by the quantization unit of e2/h and that the quantized conductance is switched by the application of magnetic field. There exists a close relationship between nanocontact MR and quantized conductance.

Original languageEnglish
Pages (from-to)2565-2567
Number of pages3
JournalIEEE Transactions on Magnetics
Volume41
Issue number10
DOIs
Publication statusPublished - 2005 Oct 1

Keywords

  • Ballistic magnetoresistance (BMR)
  • Conductance quantization
  • Nanocontact

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

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