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|Type:||Artigo de periódico|
|Title:||Influence of substrate on the magnetic properties of Ni and permalloy sub-micrometric patterned stripes|
de Araujo, AEP
|Abstract:||The magnetic properties of sub-micrometric magnetic structures of Ni and permalloy (Ni(80)Fe(20)) patterned stripes are studied as functions of temperature. The samples are produced by combining an interferometric lithographic technique with sputtering. At room temperature, ferromagnetic resonance and hysteresis data indicate the existence of an in-plane uniaxial anisotropy in both samples. The NiFe sample has an easy axis along the stripes direction in the entire studied temperature range (2 < T < 300 K). On the other hand, an interesting change in the easy magnetization direction is observed in Ni samples, from parallel to perpendicular to the axis of the stripes, when the temperature is decreased. The results are interpreted in terms of a competition between shape and magnetoelastic anisotropies.|
|Editor:||Iop Publishing Ltd|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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