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http://dx.doi.org/10.4191/KCERS.2008.45.9.556

Dielectric and Magnetic Properties of Niobium and Cobalt Co-substituted Multiferroic BiFeO3 Thin Films  

Jun, Youn-Ki (Department of Materials Science and Engineering, Seoul National University)
Hong, Seong-Hyeon (Department of Materials Science and Engineering, Seoul National University)
Publication Information
Abstract
The effects of Nb and Co ion substitution on the dielectric and magnetic properties of the multiferroic $BiFeO_3$ thin films have been investigated. Heteroepitaxial $BiFeO_3$ thin films were deposited by Pulsed Laser Deposition method. Nb substitution decreased the leakage current by 6 orders of magnitude and Co substituted $BiFeO_3$ thin films showed an enhanced magnetization, 2 times larger than that of un-substituted $BiFeO_3$. Through the co-substitution of Co and Nb, $BiFeO_3$ thin films with a low leakage current and an enhanced magnetization could be obtained.
Keywords
Multiferroic; Pulsed laser deposition; Ion substitution;
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