No abstract

Y 3Àx La x Fe 5 O 12 (x ¼ 0-0.5) ceramics with garnet structure are prepared by the solid state reaction method and their structural, magnetic, and magnetodielectric properties are investigated systematically. La 3þ substitution leads to lattice expansion and possible ion transposition, which oppositely affect the variation of Fe 2þ concentration. As a result, both the saturation magnetization and the intrinsic magnetodielectric effect first increase and then decrease with the increase of La concentration. More interestingly, room temperature large magnetodielectric coefficient of about À5% is obtained at 10 6 Hz and 0.9 T for Y 2.7 La 0.3 Fe 5 O 12 ceramics. This study provides a feasible alternative method for modulating the saturation magnetization and the magnetodielectric effect of Y 3 Fe 5 O 12 -based materials. V C 2015 AIP Publishing LLC. [http://dx.

No abstract

No abstract

No abstract