Allowed mesoscopic point group symmetries in domain average engineering of perovskite ferroelectric crystals | Zendy

D. M. Hatch | Zendy; Harold T. Stokes | Zendy; Wenwu Cao | Zendy

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Allowed mesoscopic point group symmetries in domain average engineering of perovskite ferroelectric crystals

Author(s) -

D. M. Hatch,

Harold T. Stokes,

Wenwu Cao

Publication year - 2003

Publication title -

journal of applied physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.699

H-Index - 319

eISSN - 1089-7550

pISSN - 0021-8979

DOI - 10.1063/1.1611634

Subject(s) - mesoscopic physics , ferroelectricity , condensed matter physics , homogeneous space , symmetry (geometry) , domain (mathematical analysis) , degenerate energy levels , perovskite (structure) , materials science , moduli , phase transition , physics , dielectric , crystallography , chemistry , mathematics , quantum mechanics , mathematical analysis , geometry

In multivariant systems, several energetically degenerate low temperature domain states can be produced at the structural phase transition. Coexistence of these domain states can produce mesoscopic structures that possess symmetries distinct from the microscopic single domain crystal symmetry. Such engineered domain structures in certain ferroelectric materials have been proven to give superior piezoelectric properties and extremely soft shear moduli. The objective of this article is to consider the variety of symmetries that can be produced through domain average engineering in proper ferroelectric systems arising from the cubic Pm3m symmetry perovskite structure.

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