J. Korean Ceram. Soc. > Volume 45(9); 2008 > Article
 Journal of the Korean Ceramic Society 2008;45(9): 556. doi: https://doi.org/10.4191/kcers.2008.45.9.556
 Niobium과 Cobalt를 첨가한 Multiferroic BiFeO3 박막의 유전 특성 및 자성 특성 전윤기, 홍성현 서울대학교 재료공학부 Dielectric and Magnetic Properties of Niobium and Cobalt Co-substituted Multiferroic BiFeO3 Thin Films Youn-Ki Jun, Seong-Hyeon Hong Department of Materials Science and Engineering, Seoul National University 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. Key words: Multiferroic, Pulsed laser deposition, Ion substitution
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