Transition-state-theory-based interpretation of Landau double well potential for ferroelectrics
arXiv preprint arXiv:2404.13138, 2024•arxiv.org
Existence of quasi-static negative capacitance (QSNC) was proposed from an interpretation
of the widely accepted Landau model of ferroelectrics. However, many works showed not to
support the QSNC theory, making it controversial. In this letter we show the Landau model
when used together with transition-state-theory, can connect various models including first-
principles, Landau, Preisach and nucleation limited switching while it does not predict the
existence of QSNC.
of the widely accepted Landau model of ferroelectrics. However, many works showed not to
support the QSNC theory, making it controversial. In this letter we show the Landau model
when used together with transition-state-theory, can connect various models including first-
principles, Landau, Preisach and nucleation limited switching while it does not predict the
existence of QSNC.
Existence of quasi-static negative capacitance (QSNC) was proposed from an interpretation of the widely accepted Landau model of ferroelectrics. However, many works showed not to support the QSNC theory, making it controversial. In this letter we show the Landau model when used together with transition-state-theory, can connect various models including first-principles, Landau, Preisach and nucleation limited switching while it does not predict the existence of QSNC.
arxiv.org