Ausanio, Giovanni and Iannotti, Vincenzo and Amoruso, Salvatore and Lanotte, Luciano (2006) Morphology structure and magnetic properties of (Tb0.3Dy0.7Fe2)(100-x)Fe-x nanogranular films produced by ultrashort pulsed laser deposition. [Pubblicazione in rivista scientifica]

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Tipologia del documento: Pubblicazione in rivista scientifica
Lingua: English
Titolo: Morphology structure and magnetic properties of (Tb0.3Dy0.7Fe2)(100-x)Fe-x nanogranular films produced by ultrashort pulsed laser deposition
Autori:
AutoreEmail
Ausanio, Giovanni[non definito]
Iannotti, Vincenzo[non definito]
Amoruso, Salvatore[non definito]
Lanotte, Luciano[non definito]
Autore/i: G. AUSANIO; A.C. BARONE; IANNOTTI V; P. SCARDI, M. D'INCAU, S. AMORUSO, VITIELLO M; L. LANOTTE
Data: 2006
Numero di pagine: 6
Dipartimento: Scienze fisiche
Numero identificativo: 10.1088/0957-4484/17/2/033
Titolo del periodico: NANOTECHNOLOGY
Data: 2006
Volume: 17
Intervallo di pagine: pp. 536-542
Numero di pagine: 6
Numero identificativo: 10.1088/0957-4484/17/2/033
Depositato il: 20 Ott 2010 08:00
Ultima modifica: 30 Apr 2014 19:42
URI: http://www.fedoa.unina.it/id/eprint/6400

Abstract

Magnetic films were produced by ultrashort pulsed laser deposition (uPLD) using a rotating multitarget of terfenol-D (nominal composition: Tb0.3Dy0.7Fe2) and iron. The composite films obtained have a nanoparticle morphology typical of material produced by the uPLD technique, where each particle retains the stoichiometry of the parent target material. The co-deposition allows the production of (Tb0.3Dy0.7Fe2)100−x Fex films, where x can range from 0% to 100%. Unlike films obtained by standard nanosecond PLD, pure terfenol-D layers (x = 0) are amorphous, while the addition of iron induces the formation of Fe crystalline nanoparticles inside an amorphous nanogranular matrix of terfenol-D. The magnetic properties depend on the nanoparticle morphology and more strictly on the fraction of iron particles. In particular, it was demonstrated that the exchange interaction between hard magnetic terfenol-D nanoparticles and iron nanoparticles is active in the uPLD films, giving a cumulative magnetic response resulting from an averaging of the properties of the two component phases.

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