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Ferromagnetic resonance study of dual exchange bias field behavior in NiFe/IrMn/Co trilayers
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10.1063/1.4791574
/content/aip/journal/apl/102/6/10.1063/1.4791574
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/6/10.1063/1.4791574
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Figures

Image of FIG. 1.
FIG. 1.

(a) Si(111)/Cu(100 Å)/NiFe(70 Å)/IrMn(t NiFe)/Co(30 Å)/Ru(30 Å), t NiFe = 20, 70, and 200 Å: hysteresis loops measured at room temperature with magnetic field along the direction. (b) Dependence of on t NiFe from the (b) NiFe/IrMn and (c) IrMn/Co interfaces. The lines linking the points are guides for the eyes.

Image of FIG. 2.
FIG. 2.

(a) X-band FMR spectrum measured with the external magnetic field parallel to the direction of the Si(111)/Cu(100 Å)/NiFe(70 Å)/IrMn(100 Å)/Co(30 Å)/Ru(30 Å) trilayer. (b) In-plane X-band FMR spectra for trilayer with thickness of the NiFe layer t NiFe = 70 Å. The angle values refer to the orientations of the applied magnetic field with respect to the unidirectional anisotropy axis.

Image of FIG. 3.
FIG. 3.

In-plane angular dependence of the NiFe (a)–(c) and Co (b)–(d) resonance modes for the Si(111)/Cu(100 Å)/NiFe(70 Å)/IrMn(100 Å)/Co(30 Å)/Ru(30 Å) trilayer, using (a) and (b) X-band and (c) and (d) Q-band microwave excitations.

Image of FIG. 4.
FIG. 4.

Dependence of at the NiFe/IrMn interface on t NiFe, extracted from magnetometry, and FMR experiments at X and Q-band microwave frequencies. All dashed lines are guides for the eyes.

Image of FIG. 5.
FIG. 5.

Dependence of at the IrMn/Co interface on t NiFe, extracted from magnetometry, and FMR experiments at X and Q-band microwave frequencies. All lines are guides for the eyes.

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/content/aip/journal/apl/102/6/10.1063/1.4791574
2013-02-11
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Ferromagnetic resonance study of dual exchange bias field behavior in NiFe/IrMn/Co trilayers
http://aip.metastore.ingenta.com/content/aip/journal/apl/102/6/10.1063/1.4791574
10.1063/1.4791574
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