Abstract
Strontium hexaferrite (SrFe 12O 19) thin films were grown by pulsed laser deposition on (0 0 0 1) single crystal sapphire substrates at substrate temperatures of 600 and 800 °C. Post-deposition Nd:YAG laser annealing with external magnetic field was applied. The films deposited at the higher substrate temperature were c-axis textured. Very high squareness (≈1) of the hysteresis loops was obtained for the films deposited at the lower temperature. The laser modification of the ferrite thin films produced a smooth film surface and higher coercive forces, particularly in the direction of applying the external magnetic field. The annealed films showed significant improvement of the perpendicular coercive force. The higher magnetization of the films is a result of the c-axis crystal orientation and formation of grain chains in the films.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
