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-x)Fex nanogranular films produced by ultrashort pulsed laser deposition / Ausanio, Giovanni; A. C., Barone; Iannotti, Vincenzo; P., Scardi; M., D'Incau; Amoruso, Salvatore; M., Vitiello; Lanotte, Luciano. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - STAMPA. - 17:2(2006), pp. 536-542. [10.1088/0957-4484/17/2/033]

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

AUSANIO, GIOVANNI;IANNOTTI, VINCENZO;AMORUSO, SALVATORE;LANOTTE, LUCIANO
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.
2006
Morphology structure and magnetic properties of (Tb0.3Dy0.7Fe2)(100-x)Fex nanogranular films produced by ultrashort pulsed laser deposition / Ausanio, Giovanni; A. C., Barone; Iannotti, Vincenzo; P., Scardi; M., D'Incau; Amoruso, Salvatore; M., Vitiello; Lanotte, Luciano. - In: NANOTECHNOLOGY. - ISSN 0957-4484. - STAMPA. - 17:2(2006), pp. 536-542. [10.1088/0957-4484/17/2/033]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/202261
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