Giant tunnel magnetoresistance in codeposited fullerene-cobalt films in the low bias-voltage regime

Seiji Sakai; Isamu Sugai; Seiji Mitani; Koki Takanashi; Yoshihiro Matsumoto; Hiroshi Naramoto; Pavel V. Avramov; Satoru Okayasu; Yoshihito Maeda

doi:10.1063/1.2822397

Giant tunnel magnetoresistance in codeposited fullerene-cobalt films in the low bias-voltage regime

Seiji Sakai, Isamu Sugai, Seiji Mitani, Koki Takanashi, Yoshihiro Matsumoto, Hiroshi Naramoto, Pavel V. Avramov, Satoru Okayasu, Yoshihito Maeda

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Abstract

Magnetotransport properties in the low bias-voltage regime were investigated for codeposited C60 -Co films. A giant tunnel magnetoresistance (MR) ratio (ΔR Rmax) of 80%, which is the highest in ferromagnetic metal/organic molecule systems, was found at low temperatures. The observed bias-voltage dependence of the MR ratio is expressed by an unusual exponential form, suggesting that the MR ratio of nearly 100% can be realized in the low bias-voltage limit.

Original language	English
Article number	242104
Journal	Applied Physics Letters
Volume	91
Issue number	24
DOIs	https://doi.org/10.1063/1.2822397
State	Published - 2007

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title = "Giant tunnel magnetoresistance in codeposited fullerene-cobalt films in the low bias-voltage regime",

abstract = "Magnetotransport properties in the low bias-voltage regime were investigated for codeposited C60 -Co films. A giant tunnel magnetoresistance (MR) ratio (ΔR Rmax) of 80%, which is the highest in ferromagnetic metal/organic molecule systems, was found at low temperatures. The observed bias-voltage dependence of the MR ratio is expressed by an unusual exponential form, suggesting that the MR ratio of nearly 100% can be realized in the low bias-voltage limit.",

author = "Seiji Sakai and Isamu Sugai and Seiji Mitani and Koki Takanashi and Yoshihiro Matsumoto and Hiroshi Naramoto and Avramov, {Pavel V.} and Satoru Okayasu and Yoshihito Maeda",

year = "2007",

doi = "10.1063/1.2822397",

language = "English",

volume = "91",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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T1 - Giant tunnel magnetoresistance in codeposited fullerene-cobalt films in the low bias-voltage regime

AU - Sakai, Seiji

AU - Sugai, Isamu

AU - Mitani, Seiji

AU - Takanashi, Koki

AU - Matsumoto, Yoshihiro

AU - Naramoto, Hiroshi

AU - Avramov, Pavel V.

AU - Okayasu, Satoru

AU - Maeda, Yoshihito

PY - 2007

Y1 - 2007

N2 - Magnetotransport properties in the low bias-voltage regime were investigated for codeposited C60 -Co films. A giant tunnel magnetoresistance (MR) ratio (ΔR Rmax) of 80%, which is the highest in ferromagnetic metal/organic molecule systems, was found at low temperatures. The observed bias-voltage dependence of the MR ratio is expressed by an unusual exponential form, suggesting that the MR ratio of nearly 100% can be realized in the low bias-voltage limit.

AB - Magnetotransport properties in the low bias-voltage regime were investigated for codeposited C60 -Co films. A giant tunnel magnetoresistance (MR) ratio (ΔR Rmax) of 80%, which is the highest in ferromagnetic metal/organic molecule systems, was found at low temperatures. The observed bias-voltage dependence of the MR ratio is expressed by an unusual exponential form, suggesting that the MR ratio of nearly 100% can be realized in the low bias-voltage limit.

UR - http://www.scopus.com/inward/record.url?scp=37149048993&partnerID=8YFLogxK

U2 - 10.1063/1.2822397

DO - 10.1063/1.2822397

M3 - Article

AN - SCOPUS:37149048993

SN - 0003-6951

VL - 91

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

M1 - 242104

ER -

Giant tunnel magnetoresistance in codeposited fullerene-cobalt films in the low bias-voltage regime

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