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Magneto-orientational properties of ionically stabilized aqueous dispersions of Ni(OH)2 nanoplatelets |
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| Authors: | M. Meyer Yu. L. Raikher O. Sandre A. Bée V. Cabuil V. Dupuis P. Licinio R. Perzynski |
| Affiliation: | 1. Laboratoire des Liquides Ioniques et Interfaces Chargées UMR CNRS 7612, Université Pierre et Marie Curie (Paris 6), ESPCI, case 51, 4, place Jussieu, 75252, Paris Cedex 05, France 2. LGPMC EA 3325 Université de la Nouvelle Calédonie B.P. R4, 145 ave. James Cook, 98851, Nouméa Cedex, France 3. Institute of Continuous Media Mechanics, Ural Branch of RAS, 1, Korolyov street, Perm, 614013, Russia 4. Instituto de Ciências Exatas, Departamento de Física, Universidade Federal de Minas Gerais, av. Ant?nio Carlos 6628, CP702 Pampulha, 30123-970, Belo Horizonte, MG, Brasil |
| Abstract: | Magnetic and orientational behavior of nickel hydroxide nanoplatelets ionically stabilized in a liquid matrix is studied. Under an applied field the platelets orient their faces normal to its direction. For characterization of the individual behavior of dispersed and non-interacting particles three techniques are used: SAXS, SQUID and magneto-optics. Analysis reveals that nickel hydroxide in a platelet phase is paramagnetic with a pronounced anisotropy of the intrinsic susceptibility, the major component of which (in the direction normal to platelet face) exceeds the minor one by about 25%. |
| Keywords: | PACS 82.70.Dd Colloids 83.80.Hj Suspensions, dispersions, pastes, slurries, colloids 75.50.Tt Fineparticle systems nanocrystalline materials 75.20.Ck Nonmetals |
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