http://www.cnr.it/ontology/cnr/individuo/prodotto/ID220212
Asymmetry of spin-wave dispersions in a hexagonal magnonic crystal (Articolo in rivista)
- Type
- Label
- Asymmetry of spin-wave dispersions in a hexagonal magnonic crystal (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1063/1.4807657] (literal)
- Alternative label
F. Montoncello(1), S. Tacchi(2,3), L. Giovannini(1), M. Madami(2), G. Gubbiotti(2,3) G. Carlotti(2), E. Sirotkin(4), E. Ahmad(4), F. Y. Ogrin(4), and V. V. Kruglyak(4) (2013)
Asymmetry of spin-wave dispersions in a hexagonal magnonic crystal
in Applied physics letters; AIP, American institute of physics, Melville, NY (Stati Uniti d'America)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- F. Montoncello(1), S. Tacchi(2,3), L. Giovannini(1), M. Madami(2), G. Gubbiotti(2,3) G. Carlotti(2), E. Sirotkin(4), E. Ahmad(4), F. Y. Ogrin(4), and V. V. Kruglyak(4) (literal)
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- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1) Dipartimento di Fisica e Scienze della Terra, CNISM-University of Ferrara, Ferrara, Italy
(2) Dipartimento di Fisica, CNISM-University of Perugia, Perugia, Italy
(3) Istituto Officina dei Materiali del Consiglio Nazionale delle Ricerche (IOM-CNR),Sede di Perugia, c/o Dipartimento di Fisica, Perugia, Italy
(4) School of Physics, University of Exeter, Exeter, United Kingdom (literal)
- Titolo
- Asymmetry of spin-wave dispersions in a hexagonal magnonic crystal (literal)
- Abstract
- We report a study of the dispersion of spin waves in a hexagonal array of interacting ferromagnetic
nanodisks for two orthogonal orientations of the in-plane applied magnetic field, i.e., either parallel
or perpendicular to the direction of first neighbour disks. The experimental data were modelled
using the dynamical matrix method, and the results were interpreted in terms of the effective wave
vector model. We have found that spin waves propagating in the two orthogonal directions exhibit
marked asymmetry concerning the existence of maxima/minima in their dispersion curves and the
sign of their group velocities. (literal)
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