Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Dielectric Polarization in a Capacitor01:31

Dielectric Polarization in a Capacitor

6.4K
The presence of a dielectric medium in a capacitor not only changes the voltage and capacitance but also affects the electric field. In general, dielectrics can be of two types: polar and nonpolar. In a polar dielectric, the positive and negative charges in the molecules are separated by a distance and hence have a permanent dipole moment. In contrast, no such charge separation exists in a nonpolar dielectric, however the nonpolar molecules get polarized in the presence of an external electric...
6.4K
MOS Capacitor01:25

MOS Capacitor

1.7K
A Metal-Oxide-Semiconductor (MOS) capacitor is a fundamental structure used extensively in semiconductor device technology, particularly in the fabrication of integrated circuits and MOSFETs (metal-oxide-semiconductor field-effect transistors). The MOS capacitor consists of three layers: a metal gate, a dielectric oxide, and a semiconductor substrate.
The metal gate is typically made from highly conductive materials such as aluminum or polysilicon. Beneath the metal gate lies a thin layer of...
1.7K
Valence Bond Theory02:42

Valence Bond Theory

11.5K
Coordination compounds and complexes exhibit different colors, geometries, and magnetic behavior, depending on the metal atom/ion and ligands from which they are composed. In an attempt to explain the bonding and structure of coordination complexes, Linus Pauling proposed the valence bond theory, or VBT, using the concepts of hybridization and the overlapping of the atomic orbitals. According to VBT, the central metal atom or ion (Lewis acid) hybridizes to provide empty orbitals of suitable...
11.5K
Ferromagnetism01:31

Ferromagnetism

3.4K
Materials like iron, nickel, and cobalt consist of magnetic domains, within which the magnetic dipoles are arranged parallel to each other. The magnetic dipoles are rigidly aligned in the same direction within a domain by quantum mechanical coupling among the atoms. This coupling is so strong that even thermal agitation at room temperature cannot break it. The result is that each domain has a net dipole moment. However, some materials have weaker coupling, and are ferromagnetic at lower...
3.4K
Equivalent Capacitance01:19

Equivalent Capacitance

829
From the study of resistive circuits, it is understood that employing a series-parallel combination serves as an effective strategy for simplifying circuits. Capacitors can be arranged within a circuit in one of two ways: a series configuration or a parallel configuration. The way these capacitors are connected to a battery will influence both the potential drop across each individual capacitor and the size of the charge that each capacitor can store. This is determined by the specific type of...
829
Equivalent Capacitance01:19

Equivalent Capacitance

2.3K
Multiple capacitors can be connected in a circuit in series or parallel configuration. When the capacitor combination is connected to a battery, the potential drop across each capacitor and the magnitude of charge stored in the individual capacitor depends on the type of the connection. The capacitor combination is replaced by a single equivalent capacitor that stores the same amount of charge as the combination for a given potential difference.
The following strategies are adopted to calculate...
2.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Paramagnetically driven superconducting re-entrance in Eu-doped infinite layer nickelates.

Nature communications·2026
Same author

Engineering Unequal Antipolar Displacement in Ferromagnetic Layered Oxide Heterostructures.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Polar discontinuities, emergent conductivity, and critical twist-angle-dependent behaviour at wafer-bonded ferroelectric interfaces.

Nature communications·2026
Same author

Electron Channeling Contrast Imaging of Ferroelastic Domains.

Advanced materials (Deerfield Beach, Fla.)·2026
Same author

Curvature-Controlled Polarization in Adaptive Ferroelectric Membranes.

Small (Weinheim an der Bergstrasse, Germany)·2025
Same author

Surface-Tension-Induced Phase Transitions in Freestanding Ferroelectric Thin Films.

Nano letters·2025

Related Experiment Video

Updated: Mar 19, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.3K

Negative capacitance in multidomain ferroelectric superlattices.

Pavlo Zubko1, Jacek C Wojdeł2, Marios Hadjimichael1

  • 1London Centre for Nanotechnology and Department of Physics and Astronomy, University College London, 17-19 Gordon Street, London WC1H 0HA, UK.

Nature
|June 15, 2016
PubMed
Summary
This summary is machine-generated.

Domain walls in ferroelectric-dielectric superlattices enable negative capacitance, a phenomenon crucial for advanced electronics. This research demonstrates how domain motion enhances negative permittivity, overcoming limitations in field-effect transistors.

More Related Videos

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

8.7K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.5K

Related Experiment Videos

Last Updated: Mar 19, 2026

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
07:03

Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals

Published on: August 15, 2018

9.3K
A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy
10:40

A Fabrication and Measurement Method for a Flexible Ferroelectric Element Based on Van Der Waals Heteroepitaxy

Published on: April 8, 2018

8.7K
Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
05:39

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform

Published on: August 2, 2019

10.5K

Area of Science:

  • Materials Science
  • Condensed Matter Physics
  • Nanotechnology

Background:

  • Ferroelectric materials exhibit spontaneous electrical polarization vital for applications like memory devices.
  • Nanoscale ferroelectrics display unique behaviors distinct from bulk materials, offering potential for novel devices.
  • Stable polarization in thin ferroelectrics is challenging, yet destabilization can lead to negative permittivity and negative capacitance.

Purpose of the Study:

  • To investigate negative capacitance in multidomain ferroelectric-dielectric superlattices.
  • To understand the role of domain formation and domain-wall motion in achieving negative capacitance.
  • To explore the potential of negative capacitance for overcoming power consumption limits in field-effect transistors.

Main Methods:

  • Experimental study of ferroelectric-dielectric superlattices across a range of temperatures.
  • Development of a phenomenological model to explain negative permittivity.
  • First-principles-based atomistic simulations for microscopic insights.

Main Results:

  • Demonstrated negative capacitance in multidomain ferroelectric-dielectric superlattices.
  • Showed that domain-wall motion is responsible for negative permittivity.
  • Found that domain motion can enhance the temperature range of negative permittivity.

Conclusions:

  • Domain-wall motion in ferroelectric superlattices is a viable mechanism for achieving negative capacitance.
  • Near-interface layers play a dominant role in the observed phenomenon.
  • This work paves the way for exploiting negative capacitance in future electronic devices.