Skip to Main content Skip to Navigation
Journal articles

Growth and magnetic properties of vertically aligned epitaxial CoNi nanowires in (Sr,Ba)TiO 3 with diameters in the 1.8-6 nm range

Abstract : The growth by pulsed laser deposition of fully epitaxial nanocomposites made of Co x Ni 1−x nanowires vertically self-assembled in Sr 0.5 Ba 0.5 TiO 3 /SrTiO 3 (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 is 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 nanowires and reaches 60 k B T amb for 6 nm diameter, with T amb =300 K.
Complete list of metadata

Cited literature [43 references]  Display  Hide  Download

https://hal.sorbonne-universite.fr/hal-01400216
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Monday, November 21, 2016 - 4:03:02 PM
Last modification on : Friday, July 2, 2021 - 3:41:47 AM
Long-term archiving on: : Tuesday, March 21, 2017 - 1:13:52 PM

File

Schuler_2016_Growth_and_magnet...
Files produced by the author(s)

Identifiers

Citation

V. Schuler, J. Milano, A. Coati, Adriana Vlad, M. Sauvage-Simkin, et al.. Growth and magnetic properties of vertically aligned epitaxial CoNi nanowires in (Sr,Ba)TiO 3 with diameters in the 1.8-6 nm range. Nanotechnology, Institute of Physics, 2016, 27, pp.495601 ⟨10.1088/0957-4484/27/49/495601⟩. ⟨hal-01400216⟩

Share

Metrics

Record views

548

Files downloads

1039