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High magnetoresistance and low coercivity in electrodeposited Co/Cu granular multilayers

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Title High magnetoresistance and low coercivity in electrodeposited Co/Cu granular multilayers
 
Creator GHOSH, SK
GROVER, AK
CHOWDHURY, P
GUPTA, SK
RAVIKUMAR, G
ASWAL, DK
KUMAR, MS
DUSANE, RO
 
Subject co-cu/cu multilayers
giant magnetoresistance
superparamagnetic particles
transport-properties
cobalt
 
Description Co/Cu multilayers were electrodeposited from a single solution electrolyte. By reducing the magnetic layer thickness from 1 to 0.2 nm, samples with heterogeneous mixture of ferromagnetic and superparamagnetic clusters have been made. Magnetization and magnetotransport measurements revealed the structured evolution of the multilayer granular samples. With critical thickness of t(Co)similar to 0.5 nm, room temperature magnetoresistance of 7% was obtained at 2 kOe with hysteresis of 70 Oe. The large magnetoresistance obtained in granular multilayers is attributed to the presence of a range of sizes for the Co particles. (c) 2006
 
Publisher AMER INST PHYSICS
 
Date 2011-07-15T19:31:10Z
2011-12-26T12:49:38Z
2011-12-27T05:35:06Z
2011-07-15T19:31:10Z
2011-12-26T12:49:38Z
2011-12-27T05:35:06Z
2006
 
Type Article
 
Identifier APPLIED PHYSICS LETTERS, 89(13), -
0003-6951
http://dx.doi.org/10.1063/1.2357014
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4353
http://hdl.handle.net/10054/4353
 
Language en