The perovskite system La(Mg2/3Nb1/3)O3статьяИсследовательская статья
Статья опубликована в высокорейтинговом журнале
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Дата последнего поиска статьи во внешних источниках: 7 июля 2020 г.
Аннотация:mined at 300 K by means of neutron powder diraction. Subsequent Rietveld re®nement indicates that the crystal structure has
monoclinic P21/n symmetry, which is relatively uncommon for oxide perovskites, ABO3. An analysis of the structural data obtained
reveals that this space group is uniquely capable of accommodating both BO6-octahedral tilting and cationic ordering. Considera-
tion is also given to the likelihood of further compositions adopting this symmetry, with some suggestions for future work on the
pseudo-binary system Pb(Mg1/3Nb2/3)O3±La(Mg2/3Nb1/3)O3 (i.e. PMN±LMN or, equivalently, PLMN).