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

Morphology, structure and magnetic properties of (Tb0.3Dy0.7Fe2)100-xFex nanogranular films produced by ultrashort pulsed laser deposition / G., Ausanio; A., Barone; V., Iannotti; Scardi, Paolo; D'Incau, Mirco; S., Amoruso; M., Vitiello; L., Lanotte. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - STAMPA. - 17:17(2006), pp. 536-542.

Morphology, structure and magnetic properties of (Tb0.3Dy0.7Fe2)100-xFex nanogranular films produced by ultrashort pulsed laser deposition

Scardi, Paolo;D'Incau, Mirco;
2006

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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G., Ausanio; A., Barone; V., Iannotti; Scardi, Paolo; D'Incau, Mirco; S., Amoruso; M., Vitiello; L., Lanotte
Morphology, structure and magnetic properties of (Tb0.3Dy0.7Fe2)100-xFex nanogranular films produced by ultrashort pulsed laser deposition / G., Ausanio; A., Barone; V., Iannotti; Scardi, Paolo; D'Incau, Mirco; S., Amoruso; M., Vitiello; L., Lanotte. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - STAMPA. - 17:17(2006), pp. 536-542.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11572/71823
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