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000019945 084__ $$2WoS$$aPhysics, Condensed Matter
000019945 1001_ $$0P:(DE-Juel1)VDB98055$$aKaiser, A.M.$$b0$$uFZJ
000019945 245__ $$aNano and picosecond magnetization dynamics of weakly coupled CoFe/Cr/NiFe trilayers studied by a multitechnique approach
000019945 260__ $$aCollege Park, Md.$$bAPS$$c2011
000019945 300__ $$a134406
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000019945 440_0 $$04919$$aPhysical Review B$$v84$$x1098-0121$$y13
000019945 500__ $$3POF3_Assignment on 2016-02-29
000019945 500__ $$aThis work has been financially supported by the DFG (SFB 491) and the BMBF (05KS7UK1). The authors thank R. Schreiber for the expert sample preparation as well as K. Bickmann, J. Lauer, B. Kuepper, and H. Pfeiffer for technical support. Thanks are due to the ESRF and BESSY beamline staffs for the support during beamtimes.
000019945 520__ $$aWe present results on the magnetization dynamics in heterostructures of the CoFe/Cr/NiFe type. We have employed a combination of different layer-selective methods covering a broad range from quasistatic hysteresis measurements by x-ray magnetic circular dichroism (XMCD), over time-resolved photoemission electron microscopy (PEEM) at subnanosecond timescales to high-frequency ferromagnetic resonance (FMR) experiments. With increasing driving frequency, we found a different influence of the coupling between the two ferromagnetic layers on the dynamic behavior. Employing the spatial resolution of the PEEM method, we have been able to discern various dynamic responses in different regions of the sample that could be attributed to magnetodynamic processes with a different degree of coupling. In conjunction with the complementary FMR and XMCD measurements, we attribute the inhomogeneous influence of interlayer coupling to a shift from domain-wall-motion-dominated dynamics at low frequencies to precession-dominated dynamics at higher frequencies.
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000019945 7001_ $$0P:(DE-HGF)0$$aSchoppner, C.$$b1
000019945 7001_ $$0P:(DE-HGF)0$$aRomer, F.M.$$b2
000019945 7001_ $$0P:(DE-HGF)0$$aHassel, C.$$b3
000019945 7001_ $$0P:(DE-Juel1)VDB72090$$aWiemann, C.$$b4$$uFZJ
000019945 7001_ $$0P:(DE-Juel1)130601$$aCramm, S.$$b5$$uFZJ
000019945 7001_ $$0P:(DE-Juel1)VDB95256$$aNickel, F.$$b6$$uFZJ
000019945 7001_ $$0P:(DE-Juel1)VDB104756$$aGrychtol, P..$$b7$$uFZJ
000019945 7001_ $$0P:(DE-HGF)0$$aTieg, C.$$b8
000019945 7001_ $$0P:(DE-HGF)0$$aLindner, J.$$b9
000019945 7001_ $$0P:(DE-Juel1)130948$$aSchneider, C.M.$$b10$$uFZJ
000019945 77318 $$2Crossref$$3journal-article$$a10.1103/physrevb.84.134406$$bAmerican Physical Society (APS)$$d2011-10-10$$n13$$p134406$$tPhysical Review B$$v84$$x1098-0121$$y2011
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000019945 8567_ $$uhttp://dx.doi.org/10.1103/PhysRevB.84.134406
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