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000172190 1001_ $$0P:(DE-HGF)0$$aGünther, A.$$b0$$eCorresponding Author
000172190 245__ $$aMagnetic field dependent small-angle neutron scattering on a Co nanorod array: evidence for intraparticle spin misalignment
000172190 260__ $$aCopenhagen$$bMunksgaard$$c2014
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000172190 520__ $$aThe structural and magnetic properties of a cobalt nanorod array have been studied by means of magnetic field dependent small-angle neutron scattering (SANS). Measurement of the unpolarized SANS cross section d[Sigma]/d[Omega] of the saturated sample in the two scattering geometries where the applied magnetic field H is either perpendicular or parallel to the wavevector ki of the incoming neutron beam allows one to separate nuclear from magnetic SANS, without employing the usual sector-averaging procedure. The analysis of the SANS data in the saturated state provides structural parameters (rod radius and centre-to-centre distance) that are in good agreement with results from electron microscopy. Between saturation and the coercive field, a strong field dependence of d[Sigma]/d[Omega] is observed (in both geometries), which cannot be explained using the conventional expression of the magnetic SANS cross section of magnetic nanoparticles in a homogeneous nonmagnetic matrix. The origin of the strong field dependence of d[Sigma]/d[Omega] is believed to be related to intradomain spin misalignment, due to magnetocrystalline and magnetoelastic anisotropies and magnetostatic stray fields.
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000172190 7001_ $$0P:(DE-HGF)0$$aBick, J.-P.$$b1
000172190 7001_ $$0P:(DE-HGF)0$$aSzary, P.$$b2
000172190 7001_ $$0P:(DE-HGF)0$$aHonecker, D.$$b3
000172190 7001_ $$0P:(DE-HGF)0$$aDewhurst, C. D.$$b4
000172190 7001_ $$0P:(DE-HGF)0$$aKeiderling, U.$$b5
000172190 7001_ $$0P:(DE-Juel1)144382$$aFeoktystov, Artem$$b6$$ufzj
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000172190 7001_ $$0P:(DE-HGF)0$$aBirringer, R.$$b8
000172190 7001_ $$0P:(DE-HGF)0$$aMichels, A.$$b9
000172190 773__ $$0PERI:(DE-600)2020879-0$$a10.1107/S1600576714008413$$gVol. 47, no. 3, p. 992 - 998$$n3$$p992 - 998$$tJournal of applied crystallography$$v47$$x1600-5767$$y2014
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