Small-angle neutron scattering of nanocrystalline gadolinium and holmium with random paramagnetic susceptibility
| Autor: | Joachim Kohlbrecher, Frank Döbrich, Jens-Peter Bick, R. Birringer, Andreas Michels, Matthias Wolff |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Materials science
Condensed matter physics Gadolinium Physics [G04] [Physical chemical mathematical & earth Sciences] chemistry.chemical_element Terbium Neutron scattering Condensed Matter Physics Small-angle neutron scattering Nanocrystalline material Magnetic materials Rare-earth metals Magnetic anisotropy Condensed Matter::Materials Science Paramagnetism Physique [G04] [Physique chimie mathématiques & sciences de la terre] chemistry Condensed Matter::Strongly Correlated Electrons General Materials Science Neutron Anisotropy |
| Zdroj: | Journal of Physics: Condensed Matter, 27 (4) Journal of Physics : Condensed Matter, 27, 046001. Bristol, United Kingdom: Institute of Physics (2015). |
| ISSN: | 0953-8984 1361-648X |
| DOI: | 10.3929/ethz-b-000098812 |
| Popis: | A neutron study of nanocrystalline terbium (Balaji G et al 2008 Phys. Rev. Lett. 100 227202) has shown that the randomly oriented anisotropy of the paramagnetic susceptibility tensor may lead to strongly correlated nanoscale spin disorder in the paramagnetic state which can be probed very effectively by magnetic small-angle neutron scattering (SANS). In principle, this scenario is also applicable to other rare-earth metals and the size of the effect is expected to scale with the strength of the anisotropy in the paramagnetic state. Here, we report SANS results (in the paramagnetic state) on nanocrystalline inert-gas condensed samples of Gd and Ho, which represent the cases of low and high anisotropy, respectively. Journal of Physics: Condensed Matter, 27 (4) ISSN:0953-8984 ISSN:1361-648X |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|