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Research2015

Emergence of Negative Capacitance in Multidomain Ferroelectric–Paraelectric Nanocapacitors at Finite Bias

2015/11/16

 

Authors

Shusuke Kasamatsu, Satoshi Watanabe, Cheol Seong Hwang, Seungwu Han

 

Abstract

The emergence of negative capacitance in the ultrathin ferroelectric/paraelectric bilayer capacitor under electrical bias is examined using first-principles simulation. An antiferroelectric-like behavior is predicted, and negative capacitance is shown to emerge when the monodomain state becomes stable after bias application. The polydomain–monodomain transition is also shown to be a source of capacitance enhancement.

 

 

 

 

Abstract URL：http://onlinelibrary.wiley.com/doi/10.1002/adma.201502916/abstract
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