Journal
JOURNAL OF PHYSICS-CONDENSED MATTER
Volume 21, Issue 15, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0953-8984/21/15/156003
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Funding
- European Commission [RII-CT-2003-505925]
- Deutsche Forschungsgemeinschaft [MI738/3-1]
- Universitat des Saarlandes
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Based on experimental magnetic-field-dependent neutron scattering data, we have calculated the autocorrelation function of the spin misalignment of nanocrystalline (160)gadolinium. 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.
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