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

نویسندگان

  • Shusuke Kasamatsu
  • Satoshi Watanabe
  • Cheol Seong Hwang
  • Seungwu Han
چکیده

The emergence of negative capacitance in an 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.

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عنوان ژورنال:
  • Advanced materials

دوره 28 2  شماره 

صفحات  -

تاریخ انتشار 2016