Nanocontact magnetoresistance and quantized conductance

K. Sekiguchi; E. Saitoh; H. Miyajima

doi:10.1109/TMAG.2005.854663

Nanocontact magnetoresistance and quantized conductance

K. Sekiguchi, E. Saitoh, H. Miyajima

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

6 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 language	English
Pages (from-to)	2565-2567
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	41
Issue number	10
DOIs	https://doi.org/10.1109/TMAG.2005.854663
Publication status	Published - 2005 Oct
Externally published	Yes

Keywords

Ballistic magnetoresistance (BMR)
Conductance quantization
Nanocontact

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Electrical and Electronic Engineering

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10.1109/TMAG.2005.854663

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title = "Nanocontact magnetoresistance and quantized conductance",

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.",

keywords = "Ballistic magnetoresistance (BMR), Conductance quantization, Nanocontact",

author = "K. Sekiguchi and E. Saitoh and H. Miyajima",

note = "Funding Information: This work was supported in part by a Grant in Aid for the 21st Century Center of Excellence for Optical and Electronic Device Technology for Access Network from the Ministry of Education, Culture, Sports, Science and Technology, Japan.",

year = "2005",

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T1 - Nanocontact magnetoresistance and quantized conductance

AU - Sekiguchi, K.

AU - Saitoh, E.

AU - Miyajima, H.

N1 - Funding Information: This work was supported in part by a Grant in Aid for the 21st Century Center of Excellence for Optical and Electronic Device Technology for Access Network from the Ministry of Education, Culture, Sports, Science and Technology, Japan.

PY - 2005/10

Y1 - 2005/10

N2 - 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.

AB - 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.

KW - Ballistic magnetoresistance (BMR)

KW - Conductance quantization

KW - Nanocontact

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JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 10

ER -

Nanocontact magnetoresistance and quantized conductance

Abstract

Keywords

ASJC Scopus subject areas

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