Tunnel magnetoresistance in Co nanoparticle/Co-C60 compound hybrid system

Seiji Sakai; Kay Yakushiji; Seiji Mitani; Koki Takanashi; Hiroshi Naramoto; Pavel V. Avramov; Kazumasa Narumi; Vasily Lavrentiev; Yoshihito Maeda

doi:10.1063/1.2354035

Tunnel magnetoresistance in Co nanoparticle/Co-C₆₀ compound hybrid system

Seiji Sakai, Kay Yakushiji, Seiji Mitani, Koki Takanashi, Hiroshi Naramoto, Pavel V. Avramov, Kazumasa Narumi, Vasily Lavrentiev, Yoshihito Maeda

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

67 Scopus citations

Abstract

A nanometer-scale hybrid film of Co particle/Co-C60 compound was prepared by alternate deposition of Co and C₆₀ under UHV condition. All of Raman spectra, magnetization curves, and tunnel conductivity concluded that the hybrid system has a granular structure consisting of Co nanoparticles embedded in a Co-C₆₀ compound matrix. The magnetoresistance ratio of 26% was obtained at 2 K and 10 kOe for the electron tunneling across the Co-C ₆₀ compound barrier. In addition, anomalously large bias voltage dependence was found in the magnetotransport properties.

Original language	English
Article number	113118
Journal	Applied Physics Letters
Volume	89
Issue number	11
DOIs	https://doi.org/10.1063/1.2354035
State	Published - 2006

Access to Document

10.1063/1.2354035

Cite this

@article{abd6954526d041ccbfb774f97171ef62,

title = "Tunnel magnetoresistance in Co nanoparticle/Co-C60 compound hybrid system",

abstract = "A nanometer-scale hybrid film of Co particle/Co-C60 compound was prepared by alternate deposition of Co and C60 under UHV condition. All of Raman spectra, magnetization curves, and tunnel conductivity concluded that the hybrid system has a granular structure consisting of Co nanoparticles embedded in a Co-C60 compound matrix. The magnetoresistance ratio of 26% was obtained at 2 K and 10 kOe for the electron tunneling across the Co-C 60 compound barrier. In addition, anomalously large bias voltage dependence was found in the magnetotransport properties.",

author = "Seiji Sakai and Kay Yakushiji and Seiji Mitani and Koki Takanashi and Hiroshi Naramoto and Avramov, {Pavel V.} and Kazumasa Narumi and Vasily Lavrentiev and Yoshihito Maeda",

year = "2006",

doi = "10.1063/1.2354035",

language = "English",

volume = "89",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "11",

}

TY - JOUR

T1 - Tunnel magnetoresistance in Co nanoparticle/Co-C60 compound hybrid system

AU - Sakai, Seiji

AU - Yakushiji, Kay

AU - Mitani, Seiji

AU - Takanashi, Koki

AU - Naramoto, Hiroshi

AU - Avramov, Pavel V.

AU - Narumi, Kazumasa

AU - Lavrentiev, Vasily

AU - Maeda, Yoshihito

PY - 2006

Y1 - 2006

N2 - A nanometer-scale hybrid film of Co particle/Co-C60 compound was prepared by alternate deposition of Co and C60 under UHV condition. All of Raman spectra, magnetization curves, and tunnel conductivity concluded that the hybrid system has a granular structure consisting of Co nanoparticles embedded in a Co-C60 compound matrix. The magnetoresistance ratio of 26% was obtained at 2 K and 10 kOe for the electron tunneling across the Co-C 60 compound barrier. In addition, anomalously large bias voltage dependence was found in the magnetotransport properties.

AB - A nanometer-scale hybrid film of Co particle/Co-C60 compound was prepared by alternate deposition of Co and C60 under UHV condition. All of Raman spectra, magnetization curves, and tunnel conductivity concluded that the hybrid system has a granular structure consisting of Co nanoparticles embedded in a Co-C60 compound matrix. The magnetoresistance ratio of 26% was obtained at 2 K and 10 kOe for the electron tunneling across the Co-C 60 compound barrier. In addition, anomalously large bias voltage dependence was found in the magnetotransport properties.

UR - http://www.scopus.com/inward/record.url?scp=33748680125&partnerID=8YFLogxK

U2 - 10.1063/1.2354035

DO - 10.1063/1.2354035

M3 - Article

AN - SCOPUS:33748680125

SN - 0003-6951

VL - 89

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 11

M1 - 113118

ER -

Tunnel magnetoresistance in Co nanoparticle/Co-C₆₀ compound hybrid system

Abstract

Access to Document

Other files and links

Fingerprint

Cite this