Observation of negative capacitance in antiferroelectric PbZrO3 Films [PDF]
Nature Communications, 2021 The observation of negative capacitance effect is focused on the ferroelectrics, while the antiferroelectrics based on Landau switches may have negative capacitance effect.
Leilei Qiao +9 more
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Mechanistic origin and unlocking of negative capacitance in perovskites solar cells [PDF]
iScience, 2021 Summary: We have unlocked the mechanistic behavior of negative capacitance in perovskite solar cells (PSCs) by analyzing impedance spectra at variable photovoltage and applied bias, temperature-dependent capacitance versus frequency (C-f) spectra, and ...
Mohd Taukeer Khan +4 more
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Temperature Dependence of Dielectric Properties of Ferroelectric Heterostructures with Domain-Provided Negative Capacitance [PDF]
Nanomaterials, 2021 It is well known that the ferroelectric layers in dielectric/ferroelectric/dielectric heterostructures harbor polarization domains resulting in the negative capacitance crucial for manufacturing energy-efficient field-effect transistors.
Maksim A. Pavlenko +4 more
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Is negative capacitance FET a steep-slope logic switch? [PDF]
Nature Communications, 2020 Negative Capacitance field-effect-transistor has long been touted as a steep-slope logic switch. Here, the authors present a lucid formulation that reveals the intrinsic limitation of NC-FETs in achieving steep-slope switching characteristics and ...
Wei Cao, Kaustav Banerjee
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Ferroelectric negative capacitance domain dynamics [PDF]
Journal of Applied Physics, 2018 Transient negative capacitance effects in epitaxial ferroelectric Pb(Zr0.2Ti0.8)O3 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 ...
Michael Hoffmann +8 more
openaire +5 more sources
Van der Waals negative capacitance transistors [PDF]
Nature Communications, 2019 The adaptation to atomically thin 2D semiconductors and van der Waals layered ferroelectrics can enable negative capacitance transistors with superior performance and bendability.
Xiaowei Wang +14 more
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Negative Capacitance Vacuum Channel Transistors for Low Operating Voltage [PDF]
Micromachines, 2020 This study proposes negative capacitance vacuum channel transistors. The proposed negative capacitance vacuum channel transistors in which a ferroelectric capacitor is connected in series to the gate of the vacuum channel transistors have the following ...
Woo Young Choi
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Steep-Slope and Hysteresis-Free MoS2 Negative-Capacitance Transistors Using Single HfZrAlO Layer as Gate Dielectric [PDF]
Nanomaterials, 2022 An effective way to reduce the power consumption of an integrated circuit is to introduce negative capacitance (NC) into the gate stack. Usually, negative-capacitance field-effect transistors (NCFETs) use both a negative-capacitance layer and a positive ...
Xinge Tao, Lu Liu, Jingping Xu
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The cylindrical devices with tunable positive, infinite, and negative capacitance for dynamic random access memory [PDF]
Nature CommunicationsDue to a stray field formation from the alternating ferroelectric bound charges of the multidomain state of the ferroelectric thin films, the negative capacitance effect can emerge in the ferroelectric/dielectric bilayer devices. However, the capacitance
Hyeon Woo Park +17 more
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Plasmalike negative capacitance in nanocolloids [PDF]
Applied Physics Letters, 2007 A negative capacitance has been observed in a nanocolloid between 0.1 and 10−5Hz. The response is linear over a broad range of conditions. The low-ω dispersions of both the resistance and capacitance are consistent with the free-carrier plasma model, while the transient behavior demonstrates a possible energy storage mechanism. A collective excitation,
Shulman, J. +4 more
core +6 more sources