Large electrical manipulation of permittivity in BaTiO{sub 3} and Pb(Zr,Ti)O{sub 3} bimorph heterostructure

Journal Article · Mon Aug 18 00:00:00 EDT 2014 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.4893614· OSTI ID:22310899

Ci, Penghong; Liu, Guoxi; Dong, Shuxiang ^[1]; Zhang, Li ^[2]

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1. Materials Science and Engineering, College of Engineering, Peking University, Beijing 100871 (China)
2. Department of Materials Science and Engineering, Tsinghua University, Beijing 100084 (China)

We report a strain-mediated electric field manipulation of permittivity in BaTiO{sub 3} (barium titanate, BT) ceramic by a Pb(Zr,Ti)O{sub 3} (PZT) bimorph. This BT/PZT heterostructure exhibited a relatively large permittivity tunability of BT up to ±10% in a wide frequency range under an electric field of ±4 kV/cm applied to the PZT bimorph. The permittivity tunability is attributed to the strain in BT produced by the PZT bimorph. Calculations of the relationship between permittivity and applied electric field were developed, and corresponded well with measurements. The BT/PZT heterostructure has potential for applications in broadband field tunable smart electronic devices.

• OSTI ID: 22310899
• Journal Information: Applied Physics Letters, Vol. 105, Issue 7; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BARIUM COMPOUNDS
CERAMICS
ELECTRIC FIELDS
ELECTRONIC EQUIPMENT
FREQUENCY RANGE
PERMITTIVITY
PZT