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Microscopic origin of training in exchange bias system
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View: Figures


Image of FIG. 1.
FIG. 1.

a) SQUID hysteresis loops of ML during the first (solid symbol) and second field cycles (open symbol) for . The loops correspond to a remanent field cooling state after positive saturation at RT and the arrow along the curve indicates the field sweeping direction. The inset shows the hysteresis loop at RT. The schematic represents the state of the FM-AF layer magnetization after being field cooled. The gray dots are the points of field along the curve used in neutron measurements. b) Degree of training estimated from the values (following the SQUID hysteresis loops) during the first and second field cycles for different after positive saturation at RT. The lines are a guide to the eye.

Image of FIG. 2.
FIG. 2.

Specular reflectivity patterns for the NSF [ (red) and (black)] and SF [ (green) and (blue)] channels measured from Co/CoO/Au ML at different as indicated after positive saturation. Solid symbols are data and open circles are fits to a model.

Image of FIG. 3.
FIG. 3.

a) Plot of the difference in measured spectra for different cycles at different fields. b) Variation of the angle as a function of . The dashed lines are guides to the eye. The schematic shows the scattering geometry.

Image of FIG. 4.
FIG. 4.

SF intensity maps from Co/CoO/Au ML measured at different [(a)–(c)] after positive saturation. The color bar encodes the scattered intensity on a logarithmic scale. The simulated SF intensity maps within DWBA (d) are also shown.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Microscopic origin of training in exchange bias system