Transactions of the Materials Research Society of Japan
Online ISSN : 2188-1650
Print ISSN : 1382-3469
ISSN-L : 1382-3469
X-ray Diffraction from the Ferroelectric Fluctuation and Domain Walls of Barium Titanate
Yasuhiro YonedaYoshiki KohmuraYoshio Suzuki
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2010 Volume 35 Issue 1 Pages 103-106

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Abstract

A careful observation of X-ray diffraction in the ferroelectric crystals such as BaTiO3 reveals that a new physical picture of the ferroelectric transition in these crystals may rather be regarded as an order-disorder transition. A strong local order in the disordered phase is a characteristic feature. The model gives natural interpretation of the occurrence of a micro cluster phase in the phase transition to explain the existence of the depolarization phase, and this micro cluster phase existed just behind the phase transition temperature in the tetragonal phase.

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© 2010 The Materials Research Society of Japan
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