Results 31 to 40 of about 46,265 (249)

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, Asif Islam Khan, Claudy Serrao, Zhongyuan Lu, Sayeef Salahuddin, Milan Pešić, Stefan Slesazeck, Uwe Schroeder, Thomas Mikolajick   +8 more
openaire   +3 more sources

Investigation of Negative DIBL Effect and Miller Effect for Negative Capacitance Nanowire Field-Effect-Transistors

IEEE Journal of the Electron Devices Society, 2020
In this study, the negative DIBL (N-DIBL), negative differential resistance (NDR), and Miller effect of a negative capacitance nanowire filed-effect-transistor (negative capacitance (NC) NWFET) were analyzed by employing the custom-built SPICE model.
Weixing Huang, Huilong Zhu, Zhenhua Wu, Xiaogen Yin, Qiang Huo, Kunpeng Jia, Yangyang Li, Yongkui Zhang   +7 more
doaj   +1 more source

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., Tsui, S., Chen, F., Xue, Y.Y., Chu, C.W.   +4 more
openaire   +3 more sources

Conditions for Domain-Free Negative Capacitance

IEEE Transactions on Electron Devices, 2023
While negative capacitance has been demonstrated in ferroelectric-dielectric heterostructures in the form of capacitance enhancement, all experimental evidence, to date, suggests the existence of domains therein. Here, we address the question: what are the conditions to achieve ideal, domain-free negative capacitance in ferroelectric-dielectric ...
Prasanna Venkatesan Ravindran, Priyankka Gundlapudi Ravikumar, Asif Islam Khan   +2 more
openaire   +2 more sources

Strain control of layer-resolved negative capacitance in superlattices

npj Computational Materials, 2020
Negative capacitance in BaTiO3/SrTiO3 superlattices is investigated by Monte Carlo simulations in an atomistic effective Hamiltonian model, using fluctuation formulas for responses to the local macroscopic field that incorporates depolarizing fields.
Raymond Walter, Sergey Prosandeev, Charles Paillard, L. Bellaiche   +3 more
doaj   +1 more source

A New Method to Synthesise the Sinusoidal Oscillator Based on Series Negative Resistance-Capacitance and its Implementation Using a Single Commercial IC, LT1228

Elektronika ir Elektrotechnika, 2023
An alternative method for synthesising the sinusoidal oscillator based on series negative resistance-capacitance is presented in this paper. The proposed topology is constructed with the series negative resistance-capacitance circuit connected in ...
Worawut Kulapong, Winai Jaikla, Surapong Siripongdee, Roman Sotner, Peerawut Suwanjan, Amornchai Chaichana   +5 more
doaj   +1 more source

Revisiting the Theory of Ferroelectric Negative Capacitance [PDF]

IEEE Transactions on Electron Devices, 2016
In this paper we revisit the theory of negative capacitance, in a (i) standalone ferroelectric, (ii) ferroelectric-dielectric, and (iii) ferroelectric-semiconductor series combination, and show that it is important to minimize the total Gibbs free energy of the combined system (and not just the free energy of the ferroelectric) to obtain the correct ...
Majumdar, Kausik, Datta, Suman, Rao, Satyavolu Papa   +2 more
openaire   +3 more sources

On the relation between electrical and electro-optical properties of tunnelling injection quantum dot lasers

Nanophotonics, 2023
We present a comprehensive study of the temperature dependent electronic and optoelectronic properties of a tunnelling injection quantum dot laser. The optical power-voltage (P opt–V) characteristics are shown to be correlated with the current-voltage (I–
Mikhelashvili Vissarion, Gal Lior, Seri Guy, Bauer Sven, Khanonkin Igor, Eyal Ori, Willinger Amnon, Reithmaier Johann, Eisenstein Gadi   +8 more
doaj   +1 more source

Sub-60-mV/decade Negative Capacitance FinFET With Sub-10-nm Hafnium-Based Ferroelectric Capacitor

IEEE Journal of the Electron Devices Society, 2017
The negative capacitance (NC) of ferroelectric materials has paved the way for achieving sub-60-mV/decade switching feature in complementary metal-oxide-semiconductor (CMOS) field-effect transistors, by simply inserting a ferroelectric thin layer in the ...
Eunah Ko, Hyunjae Lee, Youngin Goh, Sanghun Jeon, Changhwan Shin   +4 more
doaj   +1 more source

The Difference in the Effects of IR-Drop from the Negative Capacitance of Fast Cyclic Voltammograms

Electrochem, 2023
Diffusion-controlled cyclic voltammograms at fast scan rates show peak shifts, as well as decreases in the peak currents from predicted diffusion-controlled currents, especially when the currents are large in a low concentration of supporting ...
Yuanyuan Liu, Koichi Jeremiah Aoki, Jingyuan Chen   +2 more
doaj   +1 more source