Angular dependence of hysteresis shift in oblique deposited ferromagnetic/ antiferromagnetic coupled bilayers
The angular dependence of the hysteresis shift has been investigated in ferromagnetic/antiferromagnetic (NiFe/IrMn) bilayers grown by oblique deposition under the influence of a static magnetic field applied perpendicular to the uniaxial anisotropy direction induced during the growth process. It w...
Na minha lista:
Principais autores: | , , , , , , , |
---|---|
Formato: | article |
Idioma: | English |
Publicado em: |
AIP Publishing LLC
|
Assuntos: | |
Endereço do item: | https://repositorio.ufrn.br/jspui/handle/123456789/28838 https://doi.org/10.1063/1.4890457 |
Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
Resumo: | The angular dependence of the hysteresis shift has been investigated in ferromagnetic/antiferromagnetic
(NiFe/IrMn) bilayers grown by oblique deposition under the influence of a static magnetic field applied
perpendicular to the uniaxial anisotropy direction induced during the growth process. It was found that
at low oblique deposition angles, the unidirectional anisotropy field is much greater than the uniaxial
anisotropy field and the corresponding anisotropies directions are noncollinear. In these conditions, the
angular dependence of the hysteresis loop shift exhibits the well know cosine like shape but demanding
a phase shift. Contrary to this, at high oblique deposition angle (70), the uniaxial anisotropy plays the
fundamental role and the anisotropies directions are collinear. In this case, the exchange bias displays a
jump phenomenon. The numerical calculations are consistent with the experimental data obtained from
magneto-optical Kerr effect and ferromagnetic resonance. |
---|