Strain induced internal potentials of compositionally graded epitaxial ferroelectric thin films
作者： G. Akcay , S. Zhong , B. S. Allimi , S. P. Alpay , J. V. Mantese
DOI: 10.1063/1.2754358
关键词:
摘要: Compositionally graded ferroelectrics produce internal potentials that manifest themselves as asymmetric hysteresis in polarization versus applied field plots. The direction and magnitude of the built-in fields depend on sense chemical gradient unclamped ferroelectrics. A thermodynamic model was employed to understand how these would be affected by an inhomogeneous strain epitaxial compositionally ferroelectric structures. analysis indicates can control both potentials. Indeed, may completely reversed with appropriate gradient.
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