![]() ; ; Michels, Andreas ![]() in Journal of Physics : Condensed Matter (2014), 26 Detailed reference viewed: 186 (7 UL)![]() Michels, Andreas ![]() ![]() in Physical Review. B, Condensed Matter and Materials Physics (2011), 83 Detailed reference viewed: 145 (17 UL)![]() Honecker, Dirk ![]() ![]() in European Physical Journal B -- Condensed Matter (2010), 76(2), 209-213 Detailed reference viewed: 140 (6 UL)![]() Honecker, Dirk ![]() ![]() in Europhysics News (2010), 41(5), 15-15 Detailed reference viewed: 84 (5 UL)![]() Döbrich, Frank ![]() in Europhysics News (2009), 40/3 Detailed reference viewed: 92 (6 UL)![]() Döbrich, Frank ![]() in Journal of Physics : Condensed Matter (2009), 21(15), 1560031-1560035 Based on experimental magnetic-field-dependent neutron scattering data, we have calculated the autocorrelation function of the spin misalignment of nanocrystalline 160gadolinium. The analysis suggests the ... [more ▼] Based on experimental magnetic-field-dependent neutron scattering data, we have calculated the autocorrelation function of the spin misalignment of nanocrystalline 160gadolinium. The analysis suggests the existence of two characteristic length scales in the spin system: the smaller one is about 5 nm and is attributed to the defect cores of the grain boundaries, whereas the larger length scale is of the order of the average crystallite size D = 21 nm and presumably describes the response of the magnetization to the magnetic anisotropy field of the individual crystallites. [less ▲] Detailed reference viewed: 116 (1 UL)![]() Michels, Andreas ![]() ![]() in Europhysics Letters (2008), 81 We report on magnetic-field–dependent small-angle neutron scattering (SANS) experiments on nanocrystalline inert-gas condensed bulk Gd, which was synthesized using the low-capturing isotope 160Gd. The ... [more ▼] We report on magnetic-field–dependent small-angle neutron scattering (SANS) experiments on nanocrystalline inert-gas condensed bulk Gd, which was synthesized using the low-capturing isotope 160Gd. The angular dependency of the scattering cross-section is in very good agreement with recent theoretical predictions. Rather unexpected for this type of material, we observe a "clover-leaf–shaped" anisotropy in the SANS signal, the origin of which is attributed to the existence of longitudinal magnetization fluctuations associated with atomic site disorder and modified coupling inside the defect cores of grain boundaries. [less ▲] Detailed reference viewed: 136 (1 UL) |
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