Multiferroic nanocomposite fabrication via liquid phase using anodic alumina template

摘要

We report a novel and inexpensive fabrication process of multiferroic nanocomposite via liquid phase using an anodic alumina template. The sol-gel spin-coating technique was used to coat the template with ferrimagnetic CoFesub2/subOsub4/sub. By dissolving the template with NaOH aqueous solution, a unique nanotube array structure of CoFesub2/subOsub4/sub was obtained. The CoFesub2/subOsub4/sub nanotube arrays were filled with, and sandwiched in, ferroelectric BaTiOsub3/sub layers by a sol-gel spin-coating method to obtain the composite. Its multiferroicity was confirmed by measuring the magnetic and dielectric hysteresis loops.