First-principles study of high-field piezoelectricity in tetragonalPbTiO3
نویسندگان
چکیده
منابع مشابه
First-principles study of high-field piezoelectricity in tetragonal PbTiO3
We calculate from first principles the nonlinear piezoelectric response of ferroelectric PbTiO3 for the case of a polarization-enhancing electric field applied along the tetragonal axis. We focus mainly on the case of fixed in-plane lattice constants, corresponding to epitaxially constrained thin films. We find that the dependence of the c /a ratio on electric field is almost linear in the rang...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2010
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.81.014102