@article{33409,
  keywords = {Ferroelectric materials, Boltzmann equation, ferroelectricity, negative capacitance, Ferroelectric devices, Ferroelectric capacitors, Capacitance, Ferroelectric films, Energy dissipation, Capacitors, Boltzmann distribution, Direct measurement, Epitaxial ferroelectric films, Fundamental barriers, Intrinsic energy, New applications},
  author = {A.I Khan and K Chatterjee and B Wang and S Drapcho and L You and C Serrao and S.R Bakaul and Ramamoorthy Ramesh and S Salahuddin},
  title = {Negative capacitance in a ferroelectric capacitor},
  abstract = {The Boltzmann distribution of electrons poses a fundamental barrier to lowering energy dissipation in conventional electronics, often termed as Boltzmann Tyranny. Negative capacitance in ferroelectric materials, which stems from the stored energy of a phase transition, could provide a solution, but a direct measurement of negative capacitance has so far been elusive. Here, we report the observation of negative capacitance in a thin, epitaxial ferroelectric film. When a voltage pulse is applied, the voltage across the ferroelectric capacitor is found to be decreasing with time - in exactly the opposite direction to which voltage for a regular capacitor should change. Analysis of this inductance -like behaviour from a capacitor presents an unprecedented insight into the intrinsic energy profile of the ferroelectric material and could pave the way for completely new applications. © 2015 Macmillan Publishers Limited. All rights reserved.},
  year = {2015},
  journal = {Nature Materials},
  volume = {14},
  number = {2},
  pages = {182-186},
  publisher = {Nature Publishing Group},
  issn = {14761122},
  doi = {10.1038/nmat4148},
  note = {cited By 302},
  language = {eng},
}