Polarization switching and high piezoelectric response in Sn-modified BaTiO3

被引：89
作者：
Kalyani, Ajay Kumar [1 ]
Krishnan, Hari [2 ]
Sen, Arijit [3 ]
Senyshyn, Anatoliy [4 ]
Ranjan, Rajeev [1 ]
机构：
[1] Indian Inst Sci, Dept Mat Engn, Bangalore 560012, Karnataka, India
[2] Birla Inst Technol & Sci, Hyderabad, Andhra Pradesh, India
[3] Jadavpur Univ, Kolkata, W Bengal, India
[4] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz FRM 2, D-85747 Munich, Germany
来源：
PHYSICAL REVIEW B | 2015年 / 91卷 / 02期
关键词：
FERROELECTRIC SINGLE-CRYSTALS; ELECTRIC-FIELD; STRAIN BEHAVIOR; BARIUM-TITANATE; CERAMICS; DOMAIN; PHASE; ROTATION;
D O I：
10.1103/PhysRevB.91.024101
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
BaTiO3 is shown to exhibit anomalous piezoelectric response, comparable to that of lead-zirconate titanate, by dilute Sn modification (1-4 mol%). Using a newly discovered powder poling technique it is shown that the mechanism associated with this anomalous strain response involves electric-field-induced switching of polarization vector from [001] towards [101] pseudocubic direction. This switchability is significantly enhanced by tuning the tetragonal-orthorhombic first-order criticality near to room temperature.
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页数：13
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