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D. Ricinschi,L. Mitoseriu,M. Iwata,M. Okuyama,M. Noda,Y. Ishibashi 한국물리학회 2003 THE JOURNAL OF THE KOREAN PHYSICAL SOCIETY Vol.42 No.IV
In this paper we studied the switching kinetics using a discrete Landau-type three-dimensional polarization thermodynamic potential, with the elastic constraints of a lm attached to a substrate. We have shown that 180 domain reversal and polarization vector rotations are possible switching mechanisms, depending on eld strength and elastic stresses. The nature of nucleation seeds is also of crucial importance for the switching process. By drawing polarization vector representations of the ferroelectric lattice, the role of in-plane polarization components to switching has been investigated and shown to support experimental ndings.