Effect of composition and interface intermixing on polarization behaviors of BaTiO3/(Ba,Sr)TiO3 superlattices
Effect of composition and interface intermixing on polarization behaviors of BaTiO3/(Ba,Sr)TiO3 superlattices
We have developed a thermodynamic model based on the Landau–Ginzburg theory to study the effect of composition and interface intermixing on ferroelectric properties of BaTiO3/BaxSr1−xTiO3 (BT/BST) superlattices. Dependence of the lattice parameter and the substrate‐induced misfit strain of BST layer in BT/BST superlattices on Ba/Sr content are obtained. Effect of composition and interface intermixing on ferroelectricity of superlattices are examined by investigating the modulated profiles of polarization and the mismatch in polarization at interface. Our study reveals that the polarization behaviors of BT/BST superlattices can be manipulated by varying the Ba/Sr content in BST layer without changing the period thickness of superlattices. The effect of Ba/Sr content on polarization behavior of BT/BST superlattices is stronger than the effect of interface intermixing on polarization of the superlattices.
1698-1703
Chew, Khian-Hooi
be75ce91-e858-4dd1-9b63-7f42fb17593e
Lim, Kok-Geng
927dad30-b19f-4376-8650-cdb1cbdd29b1
Ong, Lye-Hock
b8d68e9a-7b85-498a-a7c8-5cf941cde99c
Iwata, Makoto
74cedff8-acc7-4914-9e0e-29e3213d1efa
1 August 2014
Chew, Khian-Hooi
be75ce91-e858-4dd1-9b63-7f42fb17593e
Lim, Kok-Geng
927dad30-b19f-4376-8650-cdb1cbdd29b1
Ong, Lye-Hock
b8d68e9a-7b85-498a-a7c8-5cf941cde99c
Iwata, Makoto
74cedff8-acc7-4914-9e0e-29e3213d1efa
Chew, Khian-Hooi, Lim, Kok-Geng, Ong, Lye-Hock and Iwata, Makoto
(2014)
Effect of composition and interface intermixing on polarization behaviors of BaTiO3/(Ba,Sr)TiO3 superlattices.
Physica Status Solidi (A), 211 (8), .
(doi:10.1002/pssa.201330457).
Abstract
We have developed a thermodynamic model based on the Landau–Ginzburg theory to study the effect of composition and interface intermixing on ferroelectric properties of BaTiO3/BaxSr1−xTiO3 (BT/BST) superlattices. Dependence of the lattice parameter and the substrate‐induced misfit strain of BST layer in BT/BST superlattices on Ba/Sr content are obtained. Effect of composition and interface intermixing on ferroelectricity of superlattices are examined by investigating the modulated profiles of polarization and the mismatch in polarization at interface. Our study reveals that the polarization behaviors of BT/BST superlattices can be manipulated by varying the Ba/Sr content in BST layer without changing the period thickness of superlattices. The effect of Ba/Sr content on polarization behavior of BT/BST superlattices is stronger than the effect of interface intermixing on polarization of the superlattices.
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Accepted/In Press date: 24 March 2014
e-pub ahead of print date: 7 May 2014
Published date: 1 August 2014
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Local EPrints ID: 422941
URI: http://eprints.soton.ac.uk/id/eprint/422941
ISSN: 1862-6300
PURE UUID: 38ea99d9-9d96-4580-bd8a-0d01509074c4
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Date deposited: 08 Aug 2018 16:30
Last modified: 15 Mar 2024 21:09
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Author:
Khian-Hooi Chew
Author:
Lye-Hock Ong
Author:
Makoto Iwata
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