Work

Magnetic and Magnetotransport Properties in Nanogranular Co/C60-Co Film with High Magnetoresistance

Year: 2007

Type: article

Abstract: Magnetic properties were investigated for the alternately deposited film of C60 and Co which has found to exhibit tunnel magnetoresistance (MR) of 10–80%. Magnetic field and temperature dependences of magnetization showed typical superparamagnetic behaviors with the blocking temperature of 40 K. The magnetization curve at 300 K was well fitted by the Langevin function with the size distribution of Co particles, and the mean diameter and size distribution were evaluated to be 3.1 nm and ∼1 nm, respectively. Based on the magnetic properties, the structure and magnetotransport properties are discussed in details.

Source: MATERIALS TRANSACTIONS

DOI: 10.2320/matertrans.48.754

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

Institutions: Japan Atomic Energy Agency, Advanced Science Research Center, Tohoku University, Institute for Materials Research, Tohoku University, Kyoto University

Language: English

Topic: Magnetic properties of thin films

Subfield: Condensed Matter Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze

Funder: Japan Atomic Energy Agency

OpenAlex ID: W2143753263

FWCI: 0.909

Cites: 32

Cited by: 11

Related to: 10