Dielectric properties of BaTiO3/SrTiO3 oxide superlattice

被引：0

作者：

Lee, J ^{[1
]}

Kim, L ^{[1
]}

Kim, J ^{[1
]}

Kim, Y ^{[1
]}

Jung, D ^{[1
]}

机构：

[1] Sung Kyun Kwan Univ, Dept Mat Engn, Suwon 440746, South Korea

来源：

FUNDAMENTAL PHYSICS OF FERROELECTRICS 2002 | 2002年 / 626卷

关键词：

D O I：

暂无

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

BaTiO3 (BTO)/SrTiO3 (STO) artificial superlattices have been fabricated by pulsed laser deposition (PLD) on MgO (100). The stacking periodicity of the BTO/STO each layers in the superlattice was varied from one unit cell to 125 unit cell thickness. The dielectric constant and voltage tunability of the BTO/STO superlattice increased with decreasing the stacking periodicity of the BTO/STO within the critical thickness (similar to 20 nm). Dielectric constant and voltage tunability reached a maximum similar to 1600 and 94 % at the stacking periodicity of BTO2 (unit cell) /STO2 (unit cell). The size effect of the dielectric constant was significantly diminished by artificial oxide superlattice approach. Those dielectric properties were attributed to the lattice distortion of the superlattice.

引用

页码：178 / 187

页数：10

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