Prediction of ferroelectricity in BaTiO3∕SrTiO3 superlattices with domains

Autor:	D. G. Schlom, Sy Y. Hu, Arsen Soukiassian, Avadh Saxena, C. B. Eom, Y. L. Li, Q. X. Jia, Kj J. Choi, Dmitri A. Tenne, Turab Lookman, X. X. Xi, L.Q. Chen
Rok vydání:	2007
Předmět:	Diffraction Phase transition Materials science Physics and Astronomy (miscellaneous) Condensed matter physics Superlattice Micromechanics Electrostatics Ferroelectricity Condensed Matter::Materials Science symbols.namesake Hysteresis symbols Raman spectroscopy
Zdroj:	Applied Physics Letters. 91:112914
ISSN:	1077-3118 0003-6951
Popis:	The phase transitions of superlattices into single- and multidomain states were studied using a mesoscale phase-field model incorporating structural inhomogeneity, micromechanics, and electrostatics. While the predictions of transition temperatures of BaTiO3∕SrTiO3 superlattices into multidomains show remarkably good, quantitative agreement with ultraviolet Raman spectroscopic and variable-temperature x-ray diffraction measurements, the single-domain assumption breaks down for superlattices in which the nonferroelectric layer thickness exceeds the characteristic domain size in the ferroelectric layers.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::34af42b467cf057f19d46fda17538856 https://doi.org/10.1063/1.2785121 Zobrazit plný text záznamu