References of "Michels, Andreas 50002669"
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See detailMicromagnetic modeling and small-angle neutron scattering characterization of magnetic nanocomposites
Erokhin, Sergey; Berkov, Dmitry; Gorn, Nataliya et al

in Physical Review. B, Condensed Matter and Materials Physics (2012), 85(024410), 1-12

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See detailNeutron scattering study of the magnetic microstructure of nanocrystalline gadolinium
Döbrich, Frank UL; Kohlbrecher, Joachim; Sharp, Melissa et al

in Physical Review. B, Condensed Matter and Materials Physics (2012), 85(094411), 1-17

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See detailMagnetic neutron scattering on nanocomposites: Decrypting cross-section images using micromagnetic simulations
Erokhin, Sergey; Berkov, Dmitry; Gorn, Nataliya et al

in Physical Review. B, Condensed Matter and Materials Physics (2012), 85(134418), 1-5

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See detailObservation of cross-shaped anisotropy in spin-resolved small-angle neutron scattering
Michels, Andreas UL; Honecker, Dirk UL; Döbrich, Frank UL et al

in Physical Review. B, Condensed Matter and Materials Physics (2012), 85(184417), 1-5

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See detailMagnetic small-angle neutron scattering on nanomagnets
Michels, Andreas UL

Scientific Conference (2012)

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See detailResearch in the Grand Duchy of Luxembourg
Michels, Andreas UL

Scientific Conference (2012)

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See detailInfluence of crystallite size and temperature on the antiferromagnetic helices of terbium and holmium metal
Michels, Andreas UL; Bick, Jens-Peter UL; Birringer, R. et al

in Physical Review. B, Condensed Matter and Materials Physics (2011), 83

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See detailNeutron spin-flip scattering of nanocrystalline cobalt
Honecker, Dirk UL; Döbrich, Frank UL; Dewhurst, C. D. et al

in Journal of Physics : Condensed Matter (2011), 23(1), 1-4

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See detailNew Methodology for Micromagnetic Simulations of Nanocomposites With Applications to SANS Experiments
Erokhin, Sergey; Berkov, Dmitry; Gorn, Nataliya et al

in IEEE Transactions on Magnetics (2011), 47(10), 3044-3047

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See detailMagnetic interactions in nanomagnets: a neutron-scattering study
Michels, Andreas UL

Presentation (2011)

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See detailSmall-angle Neutron Scattering with One-dimensional Polarization Analysis
Michels, Andreas UL; Honecker, Dirk UL; Döbrich, Frank UL et al

in Neutron News (2011), 22(3), 15-19

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See detailCorrelation functions of the spin misalignment in magnetic small-angle neutron scattering
Michels, Andreas UL

in Physical Review. B, Condensed Matter and Materials Physics (2010), 82(2), 0244331-02443312

We have numerically calculated the autocorrelation function C(r) of the spin misalignment by means of micromagnetic theory. C(r) depends sensitively on the details of the underlying magnetic ... [more ▼]

We have numerically calculated the autocorrelation function C(r) of the spin misalignment by means of micromagnetic theory. C(r) depends sensitively on the details of the underlying magnetic microstructure and can be determined by Fourier inversion of magnetic small-angle neutron scattering data. The model system which we consider consists of a single isolated spherical nanoparticle that is embedded in an infinitely extended matrix. The particle is uniquely characterized by its magnetic anisotropy field Hp(x), whereas the matrix is assumed to be otherwise anisotropy-field free. In the approach-to-saturation regime, we have computed the static response of the magnetization to different spatial profiles of Hp(x). Specifically, we have investigated the cases of a uniform particle anisotropy, uniform core shell, linear increase, and exponential and power-law decay. From the magnetization profiles and the associated C(r), we have extracted the correlation length lc of the spin misalignment, and we have compared the applied-field dependence of this quantity with semiquantitative theoretical predictions. We find that for practically all of the considered models for the anisotropy field (except the core-shell model) the field dependence of the spin-misalignment fluctuations is quite uniquely reproduced by lc(Hi)=L+lh(Hi), where the field-independent quantity L is on the order of the particle size and lh(Hi) represents the so-called exchange length of the applied magnetic field. [less ▲]

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See detailMagnetic interactions in nanomagnets: a neutron-scattering study
Michels, Andreas UL

Presentation (2010)

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See detailMagnetic interactions in nanomagnets: a neutron-scattering study
Michels, Andreas UL

Presentation (2010)

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See detailCoulomb Cluster: Strukturen aus Staub
Michels, Andreas UL

Presentation (2010)

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