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Structural and Magnetic Properties of LaFeO3-BaTiO3 Solid Solutions
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  • Structural and Magnetic Properties of LaFeO3-BaTiO3 Solid Solutions
  • Structural and Magnetic Properties of LaFeO3-BaTiO3 Solid Solutions
저자명
Ramana. E.Venkata,Kwon. O-Ung,Kim. Jin-I,Jung. C.U.
간행물명
Journal of magnetics
권/호정보
2009년|14권 3호|pp.117-119 (3 pages)
발행정보
한국자기학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Polycrystalline samples of LaFe$O_3$-BaTi$O_3$ were synthesized to examine the structural and magnetic behavior. X-ray diffraction confirmed that the ceramics had tetragonal symmetry with less tetragonal strain (c/a) than BaTi$O_3$. The magnetic hysteresis measured at room temperature suggested that the magnetic nature deviates from that of the parent LaFe$O_3$, which has antiferromagentic with a G-type spin structure. Improved magnetic behavior of the solid solution compound might be due to the increase in the canting angle of the spin. The presence of oxygen vacancies and fluctuating Fe valence, arising from the substitution of $Ba^{2+}$ and $Ti^{4+}$ at the A- and B-sites of the lattice, might contribute to bulk magnetization. The temperature dependent magnetization indicated that magnetization was higher at low temperatures and showed a decreasing trend with increasing temperature to room temperature. The magnetic transition temperature of these samples was 665 K and 743 K for the mixed system and LaFe$O_3$, respectively.