Conductance quantization and magnetoresistance in magnetic point contacts

Hiroshi Imamura, Nobuhiko Kobayashi, Saburo Takahashi, Sadamichi Maekawa

Research output: Contribution to journalArticle

120 Citations (Scopus)

Abstract

We theoretically study the electron transport through a magnetic point contact (PC) with special attention given to the effect of an atomic scale domain wall (DW). The spin precession of a conduction electron is forbidden in such an atomic scale DW and the sequence of quantized conductances depends on the relative orientation of magnetizations between left and right electrodes. The magnetoresistance is strongly enhanced for the narrow PC and oscillates with the conductance.

Original languageEnglish
Pages (from-to)1003-1006
Number of pages4
JournalPhysical Review Letters
Volume84
Issue number5
DOIs
Publication statusPublished - 2000 Jan 31

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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