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Linear correlation between uncompensated antiferromagnetic spins and exchange bias in bilayers
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10.1063/1.3479500
/content/aip/journal/apl/97/7/10.1063/1.3479500
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/7/10.1063/1.3479500
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Unidirectional anisotropy constant, , and the saturation magnetization, , of bilayers as a function of the Co–Fe layer composition.

Image of FIG. 2.
FIG. 2.

(a) XAS and XMCD spectra measured for the bilayer. Panel (b) represents XMCD spectra near the edge, which have been normalized by the white line intensity of the edge. Small white dots are measured data for bilayers with various Co–Fe compositions. Thick solid lines are fitted curves with two individual XMCD peaks centered at 639.95 eV and 640.2 eV, respectively, as indicated in panel (c). The thin horizontal lines present in the XMCD spectra represent the base lines.

Image of FIG. 3.
FIG. 3.

Normalized heights of the decomposed XMCD peaks at the edge centered at 639.95 eV and 640.2 eV, respectively, as a function of the Co–Fe layer composition of bilayers.

Image of FIG. 4.
FIG. 4.

The correlation between the unidirectional anisotropy constant, , and the root mean square of the normalized XMCD intensity, , at the edge examined for the bilayers. Inset illustrates the FM and AF moments at the interface. Triangle network represents atomic arrangement of fcc (111) of Mn–Ir. White (hatched) block arrows correspond to the Co (Fe) moments at the respective atomic site in disordered bcc-FM layer at the interface. Thick arrows and thin lines correspond to the Mn moments and their original axis in T1 structure, respectively. Small black circles represent nonmagnetic (Ir) atoms.

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/content/aip/journal/apl/97/7/10.1063/1.3479500
2010-08-16
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Linear correlation between uncompensated antiferromagnetic spins and exchange bias in Mn–Ir/Co100−xFex bilayers
http://aip.metastore.ingenta.com/content/aip/journal/apl/97/7/10.1063/1.3479500
10.1063/1.3479500
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