Intrinsic ferroelectric hysteresis behaviours for heterostructures

• Published in: Physica status solidi. A, Applications and materials science Vol. 203; no. 9; pp. 2205 - 2208
• Main Authors: Chew, K.-H., Ishibashi, Y., Shin, F. G.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Berlin WILEY-VCH Verlag 01.07.2006; WILEY‐VCH Verlag; Wiley-VCH
• Subjects: 68.35.Md; 77.80.Dj; Condensed matter: electronic structure, electrical, magnetic, and optical properties; Dielectrics, piezoelectrics, and ferroelectrics and their properties; Domain structure; hysteresis; Exact sciences and technology; Ferroelectricity and antiferroelectricity; Phase transitions and curie point; Physics; Interfaces; Polarization; Ferroelectric transitions; Electric field effects; Domain walls; Ginzburg-Landau theory; Heterostructures; Ferroelectric hysteresis
• ISSN: 1862-6300; 1862-6319
• DOI: 10.1002/pssa.200566007

Intrinsic ferroelectric hysteresis behaviours for a heterostructure of interface between two different ferroelectrics of second‐order transition are studied using the Landau–Ginzburg theory. We show that the existence of interfacial coupling could lead to a new polarization reversal mechanism. A detailed description of the polarization reversal mechanism of the heterostructure is discussed based on the hysteresis loops and the spatial variation of polarizations under various electric field strengths. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)