Prediction of ferroelectricity in BaTiO3∕SrTiO3 superlattices with domains | Zendy

Yulan Li | Zendy; Shenyang Hu | Zendy; D. A. Ténné | Zendy; A. Soukiassian | Zendy; Darrell G. Schlom | Zendy; X. X. Xi | Zendy; Kyu-Jin Choi | Zendy; ChangBeom Eom | Zendy; Avadh Saxena | Zendy; Turab Lookman | Zendy; Q. X. Jia | Zendy; LongQing Chen | Zendy

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Prediction of ferroelectricity in BaTiO3∕SrTiO3 superlattices with domains

Author(s) -

Yulan Li,

Shenyang Hu,

D. A. Ténné,

A. Soukiassian,

Darrell G. Schlom,

X. X. Xi,

Kyu-Jin Choi,

ChangBeom Eom,

Avadh Saxena,

Turab Lookman,

Q. X. Jia,

LongQing Chen

Publication year - 2007

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.2785121

Subject(s) - superlattice , ferroelectricity , condensed matter physics , materials science , phase transition , raman spectroscopy , diffraction , phase (matter) , optics , optoelectronics , dielectric , physics , quantum mechanics

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.open463

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