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American Physical Society, Physical review B, 22(88)

DOI: 10.1103/physrevb.88.224105

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Universal emergence of spatially modulated structures induced by flexoantiferrodistortive coupling in multiferroics

Journal article published in 2013 by Eugene A. Eliseev, Sergei V. Kalinin ORCID, Yijia Gu, Maya D. Glinchuk, Victoria Khist, Albina Borisevich ORCID, Venkatraman Gopalan, Long-Qing Chen, Anna N. Morozovska ORCID
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This paper is available in a repository.

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Abstract

We proved the existence of a universal flexo-antiferrodistortive coupling as a necessary complement to the well-known flexoelectric coupling. The coupling is universal for all antiferrodistortive systems and can lead to the formation of incommensurate, spatially-modulated phases in multiferroics. Our analysis can provide a self-consistent mesoscopic explanation for a broad range of modulated domain structures observed experimentally in multiferroics.