Effect of elastic compliances and higher order Landau coefficients on the phase diagram of single domain epitaxial Pb(Zr,Ti)O3 (PZT) thin films | Zendy

Mahamudu Mtebwa | Zendy; A. K. Tagantsev | Zendy; N. Setter | Zendy

Open Access

Effect of elastic compliances and higher order Landau coefficients on the phase diagram of single domain epitaxial Pb(Zr,Ti)O3 (PZT) thin films

Author(s) -

Mahamudu Mtebwa,

A. K. Tagantsev,

N. Setter

Publication year - 2014

Publication title -

aip advances

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.421

H-Index - 58

ISSN - 2158-3226

DOI - 10.1063/1.4905265

Subject(s) - phase diagram , condensed matter physics , landau theory , materials science , ferroelectricity , thin film , diagram , phase (matter) , elastic energy , phase transition , domain (mathematical analysis) , energy (signal processing) , thermodynamics , physics , mathematics , mathematical analysis , quantum mechanics , nanotechnology , optoelectronics , statistics , dielectric

We report the qualitative study of the influence of both elastic compliances and higher order terms of Landau free energy potential on the phase diagram of Pb(Zr0.5Ti0.5)O3 thin films by using a single domain Landau theory. Although the impact of elastic compliances and higher order terms of the Landau free energy potential on the phase diagram of ferroelectric thin films are known, the sensitivity of the phase diagram of PZT thin film on these parameters have not been reported. It is demonstrated that, while values of elastic compliances affect the positions of the phase boundaries including phase transition temperature of the cubic phase; higher order terms can potentially introduce an a1a2-phase previously predicted in PbTiO3 phase diagram

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