Journal Article

FZJ-2015-03839

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Multidomains made of different structural phases in multiferroic BiFeO 3 : A first-principles-based study

Wang, D. (Corresponding Author) ; Salje, E. K. H. ; Mi, S.-B. ; Jia, C.-L.FZJ* ; Bellaiche, L.

2013
APS College Park, Md.

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Please use a persistent id in citations: http://hdl.handle.net/2128/8796  doi:10.1103/PhysRevB.88.134107

Abstract: An effective Hamiltonian scheme is used to reveal the properties of a multidomain structure in BiFeO3 consisting of alternating domains that are initially made of two phases, namely, R3c (ferroelectric with antiphase oxygen octahedral tilting) versus Pnma (antiferroelectric with in-phase and antiphase oxygen octahedral tiltings). These two types of domains dramatically modify their properties as a result of their cohabitation. The weak ferromagnetic vector and polarization rotate, and significantly change their magnitude, in the R3c-like region, while the Pnma-like region becomes polar along the direction of domain propagation. Moreover, the domain walls possess distinct polar and oxygen octahedral tilting patterns that facilitate the transition between these two regions. The studied multidomain is also predicted to exhibit other anomalous properties, such as its strain adopting several plateaus and steps when increasing the magnitude of an applied electric field.

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Contributing Institute(s):

1. Mikrostrukturforschung (PGI-5)

Research Program(s):

1. 424 - Exploratory materials and phenomena (POF2-424) (POF2-424)

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Database coverage:
; ; ; Current Contents - Physical, Chemical and Earth Sciences ; IF < 5 ; JCR ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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