http://www.cnr.it/ontology/cnr/individuo/prodotto/ID275249
Anisotropy-graded magnetic media obtained by ion irradiation of L10 FePt (Articolo in rivista)
- Type
- Label
- Anisotropy-graded magnetic media obtained by ion irradiation of L10 FePt (Articolo in rivista) (literal)
- Anno
- 2013-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.actamat.2013.04.064 (literal)
- Alternative label
A. di Bona, P. Luches, F. Albertini, F. Casoli, P. Lupo, L. Nasi, S. D'Addato, G.C. Gazzadi, S. Valeri (2013)
Anisotropy-graded magnetic media obtained by ion irradiation of L10 FePt
in Acta materialia; Elsevier Science Ltd, Exeter (Regno Unito)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- A. di Bona, P. Luches, F. Albertini, F. Casoli, P. Lupo, L. Nasi, S. D'Addato, G.C. Gazzadi, S. Valeri (literal)
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- http://www.sciencedirect.com/science/article/pii/S1359645413003492 (literal)
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- Centro S3 CNR-NANO, Modena, Italy; IMEM-CNR, Parma, Italy; Dipartimento di Fisica Università di Modena e Reggio Emilia, Modena, Italy (literal)
- Titolo
- Anisotropy-graded magnetic media obtained by ion irradiation of L10 FePt (literal)
- Abstract
- We show that Ar+ irradiation can be used effectively to transform a chemically ordered FePt L10 homogeneous thin film into an anisotropy-graded composite media with tunable magnetic response. This can be exploited to produce magnetic media with high thermal stability and moderate coercivity with potential in high-density magnetic recording applications. The depth distribution of the chemical order parameter, which controls the magnetic switching mechanism of the system, has been determined by high-resolution transmission electron microscopy. The irradiation-induced modifications of the material have been modeled using Monte Carlo simulations for ion transport in solids. The magnetic properties and coupling regimes of the resulting exchange-coupled systems are discussed. (literal)
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