  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.
