Abstract

Lead iron niobate (Pb(Fe1/2Nb1/2)O3), discovered by Smolenskii et al. at the end of the 1950¡¯s, is both ferroelectric and antiferromagnetic. It transfers from paraelectric state (cubic phase) to ferroelectric state (rhombohedral phase) at Curie temperature (387 K) and from paramagnetic order to antiferromagnetic order at N¨oeel temperature (143 K and 19 K). Epitaxial PFN thin films are successfully deposited on (001), (110) and (111) STO substrates with SRO as bottom electrodes and Gold as top electrodes. Deposition, structure, electrical and magnetic properties of PFN will be introduced in the presentation.

Biography

Li Yan received his B.E. and M.S. degree in Materials Science and Engineering from Tsinghua University, Beijing, China in 2000 and 2003 respectively.   He is now a Ph.D. candidate working under Dr. Dwight Viehland.   His thesis focuses on ferroelectric and ferromagnetic thin film deposited by Pulsed Laser Deposition.