Magnetoelastic properties of laser-ablated non-crystalline Co cylindrical films

Non-crystalline Co films have been deposited on the cylindrical surface of copper wires by pulsed laser ablation deposition. These films are magnetoelastic. In particular, they exhibit the inverse Wiedemann effect (IWE): when they are twisted and an electrical current flows through the wires, a long...

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Bibliographic Details
Published in:Journal of non-crystalline solids 2001-07, Vol.287 (1), p.390-395
Main Authors: Favieres, C., Madurga, V.
Format: Article
Language:English
Subjects:
Applied sciences
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Laser deposition
Magnetic properties and materials
Magnetic properties of monolayers and thin films
Magnetic properties of surface, thin films and multilayers
Magnetomechanical and magnetoelectric effects, magnetostriction
Materials science
Metals. Metallurgy
Methods of deposition of films and coatings
film growth and epitaxy
Physics
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Summary:Non-crystalline Co films have been deposited on the cylindrical surface of copper wires by pulsed laser ablation deposition. These films are magnetoelastic. In particular, they exhibit the inverse Wiedemann effect (IWE): when they are twisted and an electrical current flows through the wires, a longitudinal component of the magnetization is observed. The value of the spontaneous magnetization, M s, of these films is achieved by the measurement of this effect. The dependence of the IWE on the torsion as well as on the circular magnetic field has been measured. The magnetostriction constant, λ s, has been found to be negative and λ s≈−(9.5±0.8)×10 −6.
ISSN:0022-3093
1873-4812
DOI:10.1016/S0022-3093(01)00604-4