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ChemInform Abstract: Preparation of Giant Magnetoresistance Co-Cu Heterogeneous Alloys by Electrodeposition.

✍ Scribed by Y. JYOKO; S. KASHIWABARA; Y. HAYASHI

Publisher
John Wiley and Sons
Year
2010
Weight
32 KB
Volume
28
Category
Article
ISSN
0931-7597

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✦ Synopsis

Preparation of Giant Magnetoresistance Co-Cu Heterogeneous Alloys by Electrodeposition.

-Heterogenous Co-Cu alloy thin films (β‰ˆ1 Β΅m thick) grown at room temperature on a (111) Pt single-crystal substrate from a sulfate electrolyte containing Co2+ and Cu2+ are characterized by TEM, XRD, and magnetic measurements. Reflection electron microscopic observations of the layers electrodeposited under potential control from the sulfate electrolyte show a heteroepitaxial growth or a three-dimensional island growth depending on the deposition overpotential. A heterogenous Co0.2Cu0.8 alloy film consisting of ultrafine Co-rich clusters in a nonmagnetic Cu matrix exhibit a large saturation magnetoresistance value of more than 20% at room temperature. -(JYOKO,

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