15:30-16:15

Nanostructured BiFeO₃ and its Electrical, Magnetic and Optical Behaviors

Multiferroics have been intensively invetigated recently, motivated by the large magnetoelectric effect, potential applications in information storage process, spintronics andmultiple-state memories. BiFeO₃-based thin films have been prepared by a simple spin-coating process, and observed the tunable ferroelectric and ferromagnetic behaviours. We also designed a simple MIS structure based on BFO thin films, which show good electrical properties. Nanostructured BiFeO₃ particles and nanowires were also synthesized by a controlled hydrothermal process and an electrospun process. The BiFeO₃ nanowires show better photocatalytic property under visible-light irradiation and weak ferromagnetic property at room temperature. Our results indicate that these nanostructured BiFeO3 are an important visible-light responsive photocatalyst besides its multiferroic performance due to its suitable band gap and excellent chemical stability.

Speaker

Prof. Yuan-Hua Lin, Department of Materials Science and Engineering, Tsinghua University, China

Chair

Dr. Yoshio Bando, MANA COO, NIMS