Growth and magnetic properties of vertically aligned epitaxial CoNi nanowires in (Sr, Ba)TiO3 with diameters in the 1.8-6 nm range

Schuler, V.; Milano, Julian; Coati, A.; Vlad, A.; Sauvage Simkin, M.; Garreau, Y.; Demaille, D.; Hidki, S.; Novikova, A.; Fonda, E.; Zheng, Y.; Vidal, F.

doi:10.1088/0957-4484/27/49/495601

Artículo

Growth and magnetic properties of vertically aligned epitaxial CoNi nanowires in (Sr, Ba)TiO3 with diameters in the 1.8-6 nm range

; Coati, A.; Vlad, A.; Sauvage Simkin, M.; Garreau, Y.; Demaille, D.; Hidki, S.; Novikova, A.; Fonda, E.; Zheng, Y.; Vidal, F.

Fecha de publicación: 08/11/2016

Editorial: IOP Publishing

Revista: Nanotechnology

ISSN: 0957-4484

Idioma: Inglés

Tipo de recurso: Artículo publicado

Clasificación temática:

Astronomía

Resumen

The growth by pulsed laser deposition of fully epitaxial nanocomposites made of CoxNi1-x nanowires (NW) vertically self-assembled in Sr0.5Ba0.5TiO3/SrTiO3(001) layers is reported. The diameter of the wires can be tuned in the 1.8-6 nm range. The composition of the wires can be controlled, with the growth sequence and the fcc crystallographic structure of the wires preserved for Co content up to 78%. The nanocomposite systems obtained display a uniaxial magnetic anisotropy with out-of-plane easy axis as shown through analysis of ferromagnetic resonance measurements. It is shown that the magnitude of the magnetic anisotropy depends sensitively on the structural quality of the nanocomposites.The energy barrier for magnetization reversal scales as the square of the diameter of the NW and reaches 60 for 6 nm diameter, with T amb = 300 K.

Palabras clave: Ferromagnetic Nanowires , Ferromagnetic Resonance , Pulsed Laser Deposition , Self-Assembly , Vertical Epitaxy , X-Ray Absorption , X-Ray Diffraction

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Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/48779

DOI: http://dx.doi.org/10.1088/0957-4484/27/49/495601

URL: http://iopscience.iop.org/article/10.1088/0957-4484/27/49/495601/meta

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Articulos de CTRO.CIENTIFICO TECNOL.CONICET - PATAGONIA NORTE

Citación

Schuler, V.; Milano, Julian; Coati, A.; Vlad, A.; Sauvage Simkin, M.; et al.; Growth and magnetic properties of vertically aligned epitaxial CoNi nanowires in (Sr, Ba)TiO3 with diameters in the 1.8-6 nm range; IOP Publishing; Nanotechnology; 27; 49; 8-11-2016; 1-10; 495601

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