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 24.03.2012   Карта сайта     Language По-русски По-английски
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24.03.2012



Effect of Ba(Cu1/3Nb2/3)O3 content on multiferroic properties in BiFeO3 ceramics



  • Chang-Woo Baeka,

  • Nam-Keun Ohb, e,

  • Guifang Hanb,

  • Woon-Ha Yoonb,

  • Jong-Woo Kimb,

  • Jong-Jin Choib,

  • Byung-Dong Hanb,

  • Dong-Soo Parkb,

  • Kil-Dong Sungc,

  • Jong-Hoon Jungc,

  • Dae-Yong Jeongd, Corresponding author contact information, E-mail the corresponding author,

  • Jeong-Joo Kime,

  • Jungho Ryub, Corresponding author contact information, E-mail the corresponding author



  • a Department of Materials Science and Engineering, Myongji University, Yongin, Gyeonggi 449-728, Republic of Korea

  • b Functional Ceramics Research Group, Korea Institute of Materials Science (KIMS), Changwon, Gyeongnam 641-831, Republic of Korea

  • c Department of Physics, Inha University, Incheon 402-751, Republic of Korea

  • d School of Materials Engineering, Inha University, Incheon 402-751, Republic of Korea

  • e Department of Electronic Materials Science and Engineering, Kyungpook National University, Daegu 702-701, Republic of Korea








Abstract


The crystal structure, microstructural evolution, and ferroelectric and magnetic properties of BiFeO3 (BFO) ceramic materials, widely known as room temperature multiferroic materials, were investigated with various contents of Ba(Cu1/3Nb2/3)O3 (BCN). The ceramics were synthesized through the solid state reaction and pressureless sintering in air. By adding tetragonal structured BCN phase to the rhombohedral structured BFO phase, a solid solution was formed. The rhombohedral crystal structure and lattice parameter, densification behavior, and microstructure of BFO were noticeably changed upon the addition of BCB. The electrical properties of BFO were slightly enhanced by the addition of BCN. However, the magnetic properties of BFO which is the most critical issue in BFO multiferroics were drastically changed and the 20 mol% BCN added BFO ceramics showed extremely enhanced magnetization characteristics compared to the other BFO–BCN ceramics. It is expected that BFO–BCN ceramics with this composition could be one of the most promising multiferroic materials for future multiferroic applications



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А Б В Г Д Е Ё Ж З И Й К Л М Н О П Р С Т У Ф Х Ц Ч Ш Щ Ъ Ы Ь Э Ю Я
  • Chen Wev .  honorary member of ISSC science council

  • Harton Vladislav Vadim  honorary member of ISSC science council

  • Lichtenstain Alexandr Iosif  honorary member of ISSC science council

  • Novikov Dimirtii Leonid  honorary member of ISSC science council

  • Yakushev Mikhail Vasilii  honorary member of ISSC science council

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