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Structural and magnetic properties of Co nanoparticles in Cu/SiO₂ matrix
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View Archive Info| Field | Value | |
| Title |
Structural and magnetic properties of Co nanoparticles in Cu/SiO₂ matrix
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| Creator |
Kumar, P Anil
Mitra, Subarna Mandal, Kalyan |
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| Subject |
Co nanoparticles
Cu/SiO₂ matrix Magnetic properties Magnetocrystalline anisotropy constant |
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| Description |
21-26
The magnetic properties of Co nanoparticles embedded in SiO₂ and Cu matrices separately, have been presented in the paper. The size of the cobalt nanoparticles is varied between 15-35 nm. Co forms a usual hcp structure in SiO₂ matrix whereas it forms fcc structure when embedded in Cu matrix. This fact is also supported by the higher coercivity of Co nanoparticles in SiO₂ matrix. A large coercivity value (~ 855 Oe) for Co nanoparticles embedded in SiO₂ matrix and considerably high value (~ 465 Oe) for Co nanoparticles embedded in Cu matrix have been reported. The Law of Approach to Saturation is used in the case of Co-Cu composite to calculate the magnetocrystalline anisotropy constant and saturation magnetization. |
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| Date |
2008-10-22T08:54:03Z
2008-10-22T08:54:03Z 2007-01 |
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| Type |
Article
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| Identifier |
0019-5596
http://hdl.handle.net/123456789/2277 |
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| Language |
en_US
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| Relation |
H01F41/30
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| Publisher |
CSIR
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| Source |
IJPAP Vol.45(1) [January 2007]
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