publication . Article . Preprint . Other literature type . 2018

ferroelectric negative capacitance domain dynamics

Hoffmann, Michael; Khan, Asif Islam; Serrao, Claudy; Lu, Zhongyuan; Salahuddin, Sayeef; Pešić, Milan; Slesazeck, Stefan; Schroeder, Uwe; Mikolajick, Thomas;
Open Access
  • Published: 14 May 2018 Journal: Journal of Applied Physics, volume 123, page 184,101 (issn: 0021-8979, eissn: 1089-7550, Copyright policy)
  • Publisher: AIP Publishing
Abstract
Transient negative capacitance effects in epitaxial ferroelectric Pb(Zr$_{0.2}$Ti$_{0.8}$)O$_3$ capacitors are investigated with a focus on the dynamical switching behavior governed by domain nucleation and growth. Voltage pulses are applied to a series connection of the ferroelectric capacitor and a resistor to directly measure the ferroelectric negative capacitance during switching. A time-dependent Ginzburg-Landau approach is used to investigate the underlying domain dynamics. The transient negative capacitance is shown to originate from reverse domain nucleation and unrestricted domain growth. However, with the onset of domain coalescence, the capacitance be...
Subjects
free text keywords: General Physics and Astronomy, Domain wall (magnetism), Capacitance, Resistor, law.invention, law, Negative impedance converter, Physics, Condensed matter physics, Series and parallel circuits, Capacitor, Ferroelectricity, Ferroelectric capacitor, Condensed Matter - Mesoscale and Nanoscale Physics
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publication . Article . Preprint . Other literature type . 2018

ferroelectric negative capacitance domain dynamics

Hoffmann, Michael; Khan, Asif Islam; Serrao, Claudy; Lu, Zhongyuan; Salahuddin, Sayeef; Pešić, Milan; Slesazeck, Stefan; Schroeder, Uwe; Mikolajick, Thomas;