High magnetic field investigations of the magnetoelectric effect in magnetic ferroelectrics (RBi)FeO₃

Synthesis and dielectric properties of Bi1−xNdxFeO3 perovskites

“…In such a case s AC obeys relation (2). Since t is small (B10 À10 s), at frequencies oo10 9 Hz, o 2 t 2 51 and hence it can be neglected from the denominator of (2). Thus in such a case a plot of log (s AC À s DC ) vs. log o 2 should be a straight line, which is indeed the case in Fig.…”

“…Since the conductivity increases with frequency one can expect hopping conduction of small polarons. In such a case s AC obeys relation (2). Since t is small (B10 À10 s), at frequencies oo10 9 Hz, o 2 t 2 51 and hence it can be neglected from the denominator of (2).…”

“…Solid solutions of Bi 1Àx Nd x FeO 3 belong to the class of materials, which can exhibit simultaneously the ordering of electric and magnetic dipoles [1,2]. NdFeO 3 is known to be orthorhombically distorted perovskite structure [3].…”

Mechanisms of magnetoelectric effects in oxide multiferroics with a perovskite praphase

“…The alternative to BiFeO 3 -containing heterostructures is BiFeO 3 -ceramic, which also manages to implement linear MEE by substituting rare earth ions for Bi ions. Researches in this direction are conducted, since 1990, up to the present day, the received results specify the possibility of realization of MEE in compositions of Bi 1−x R x FeO 3 with rare-earth ions (R = Gd, Dy, La, Lu) [20][21][22][23][24][25][26][27]. Below we will focus on the results of a paper in which the appearance of MEE in R-doped single crystals BiFeO 3 is explained by reduced symmetry.…”

Механизмы Магнитоэлектрических Эффектов В Оксидных Мультиферроиках С Прафазой Перовскита

“…Исследования в этом направлении проводятся, начиная с 1990 гг. по сегодняшний день, полученные результаты указывают на возможность реализации МЭЭ в соединениях Bi 1−x R x FeO 3 с редкоземельными ионами (R = Gd, Dy, La, Lu)[20][21][22][23][24][25][26][27].…”