Metastable perovskite Bi1-xLaxFe0.5Sc0.5O3 phases in the range of the compositional crossover
authors Salak, AN; Khalyavin, DD; Zamaraite, I; Stanulis, A; Kareiva, A; Shilin, AD; Rubanik, VV; Radyush, YV; Pushkarev, AV; Olekhnovich, NM; Starykevich, M; Grigalaitis, R; Ivanov, M; Banys, J
nationality International
journal PHASE TRANSITIONS
author keywords Multiferroic; metastable phase; sol-gel method; high-pressure synthesis
keywords MAGNETIC-PROPERTIES; BISMUTH FERRITE; BIFEO3 CERAMICS; MULTIFERROICS; SUBSTITUTION; SYSTEM; ND
abstract Perovskite ceramics of the Bi1-xLaxFe0.5Sc0.5O3 composition (0.30 <= x <= 0.35) that cannot be sintered in bulk form as a single phase using the conventional ceramic route were successfully prepared using the high-pressure/high-temperature technique. It has been shown that the room-temperature compositional crossover from the antipolar phase whose incommensurate modulation of displacements of Bi/La and oxygen is described by the Imma(00 gamma)s00 superspace group to the non-polar Pnma phase occurs in the narrow range between x = 0.33 and x = 0.34 with no phase coexistence. The features of this compositional crossover are discussed in comparison with that observed in the Bi1-xLaxFeO3 system.
publisher TAYLOR & FRANCIS LTD
issn 0141-1594
year published 2017
volume 90
issue 9
beginning page 831
ending page 839
digital object identifier (doi) 10.1080/01411594.2017.1290802
web of science category Crystallography; Physics, Condensed Matter
subject category Crystallography; Physics
unique article identifier WOS:000417417100004
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