Conductance quantization in ferromagnetic Ni nano-constriction

Masayoshi Shimizu; Eiji Saitoh; Hideki Miyajima; Yoshichika Otani

doi:10.1016/S0304-8853(01)00544-3

Conductance quantization in ferromagnetic Ni nano-constriction

Masayoshi Shimizu, Eiji Saitoh, Hideki Miyajima, Yoshichika Otani

Advanced Institute for Materials Research (AIMR)

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

The conductance in ferromagnetic Ni nano-wire is quantized in units of 2e²/h in the absence of magnetic field, while the units switch to e²/h in the magnetic field. The fractional units of 0.7e²/h and 1.4e²/h with and without magnetic field appear under the application of high bias-voltage. The spin polarization and bias-voltage play an important role in the electric conduction.

Original language	English
Pages (from-to)	243-245
Number of pages	3
Journal	Journal of Magnetism and Magnetic Materials
Volume	239
Issue number	1-3
DOIs	https://doi.org/10.1016/S0304-8853(01)00544-3
Publication status	Published - 2002 Feb 1

Keywords

Break-junction
Conductance quantization
Ferromagnetic materials
Nano-wire

ASJC Scopus subject areas

Condensed Matter Physics

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AU - Miyajima, Hideki

AU - Otani, Yoshichika

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