Intrinsic ferroelectric properties of strained tetragonal PbZr0.2Ti0.8O3 obtained on layer-by-layer grown, defect-free single-crystalline films

被引:239
作者
Vrejoiu, Ionela [1 ]
Le Rhun, Gwenael [1 ]
Pintilie, Lucian [1 ]
Hesse, Dietrich [1 ]
Alexe, Marin [1 ]
Goesele, Ulrich [1 ]
机构
[1] Max Planck Inst Microstruct Phys, D-06120 Halle, Germany
关键词
D O I
10.1002/adma.200502711
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Ferroelectric single-crystalline PbZr0.2Ti0.8O3 thin films, free from extended defects, are grown by pulsed laser deposition onto vicinal SrTiO3(001) single crystals. The PbZr0.2Ti0.8O3 films are strained and exhibit enhanced tetragonality, c/a approximate to 1.06. They have a remnant polarization, P-r = 110 mu C cm(-2), dielectric constant, 633 = 90, and piezoelectric coefficient, d(33), up to 50 pm V-1 (see figure).
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页码:1657 / +
页数:6
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