Pulsed laser deposition of ferrite film on polymer based photonic crystal: Thermomagnetic properties

In order to assess magneto-thermoelasticity changes around room temperature, the polycrystalline bismuth ferrite thin films were grown by pulsed laser deposition on the designed polymer colloidal photonic crystal substrates. The X-ray diffraction and the magneto-optical properties of these films were investigated as a function of deposition substrate and target–substrate distances in pulsed laser deposition. Furthermore, the thermal magnetic behavior of polycrystalline bismuth ferrite was measured by Faraday rotation geometry. Our results have shown that the Faraday rotation of the sample had the huge rotation down shift with a slight thermal change due to the large anisotropic thermal deformation of polymer colloidal interface. This new route of combining thermal properties of polymer colloidal crystal to manipulate the magnetic response of the multiferroic materials can possibly lead to innovations in magneto-optical thermal sensors and switches.

Keywords:

Bismuth ferrite , Photonic Crystal , Magneto-optics , Thermomagnetic , pulsed-laser deposition