Quantized e2/h Step and Nonquantized Step in Nanocontact Magnetoresistance

K. Sekiguchi, M. Shimizu, H. Miyajima

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Abstract

Electron transport property in the nanocontacting wire was investigated by measuring magnetoresistance effect. In the regime of conductance quantization, the magnetoresistance exhibits the quantized step (in the unit of e2/h) and nonquantized step (ΔG < e2/h). The magnetoresistance effect appears to be large in the case that either of the steps was observed in a magnetoresistance curve, indicating that there are different mechanisms which bring about the giant magnetoresistance.

Original languageEnglish
Pages (from-to)2618-2620
Number of pages3
JournalIEEE Transactions on Magnetics
Volume42
Issue number10
DOIs
Publication statusPublished - 2006

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Keywords

  • Ballistic magnetoresistance (BMR)
  • conductance quantization
  • nanocontact

ASJC Scopus subject areas

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

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