Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

MOSFET: Enhancement Mode

MOSFET: Enhancement Mode

Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...

Propagation Speed of Electromagnetic Waves

Propagation Speed of Electromagnetic Waves

Electromagnetic waves are consistent with Ampere's law. Assuming there is no conduction current Ampere's law is given as:

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Cooperative allosteric transitions can occur in multimeric proteins, where each subunit of the protein has its own ligand-binding site. When a ligand binds to any of these subunits, it triggers a conformational change that affects the binding sites in the other subunits; this can change the affinity of the other sites for their respective ligands. The ability of the protein to change the shape of its binding site is attributed to the presence of a mix of flexible and stable segments in the...

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Cooperative Allosteric Transitions

Distribution of Molecular Speeds

Distribution of Molecular Speeds

The motion of molecules in a gas is random in magnitude and direction for individual molecules, but a gas of many molecules has a predictable distribution of molecular speeds. This predictable distribution of molecular speeds is known as the Maxwell-Boltzmann distribution. The distribution of molecular speeds in liquids is comparable to that of gases but not identical and can help to understand the phenomenon of the boiling and vapor pressure of a liquid. Consider that a molecule requires a...

You might also read

Related Articles

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

Sort by

Same author

Dynamic asymmetric strain imprinted into substrates by an oxide thin film.

Science (New York, N.Y.)·2026

Same author

Operando microscopy for neuromorphic hardware.

Nature materials·2026

Same author

Coexistence of Synchronization and Stochasticity in Thermally Coupled Mott Oscillators.

ACS nano·2026

Same author

Electromagnetic Radiation Stimulated Learning in Perovskite Nickelates.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Same author

Picosecond-scale coherent toggle switching of topological spin helicity.

Nature nanotechnology·2026

Same author

Strain and Defect-Tailored Magnetotransport in NiCo<sub>2</sub>O<sub>4</sub> Thin Films and Freestanding Membranes.

ACS nano·2026

Same journal

Plasmonic nanocomposite helices for weather-adaptive LiDAR function.

Nature communications·2026

Same journal

Multidirectional strain-insensitive stretchable RF electronics.

Nature communications·2026

Same journal

In-scanner thoughts contribute to resting-state functional connectivity.

Nature communications·2026

Same journal

Metal-center electron affinity modulates multicolor electrochromism in 2D conjugated metal-organic frameworks.

Nature communications·2026

Same journal

Hyperbranched dielectric polymer networks exhibiting giant energy storage density at 250 °C.

Nature communications·2026

Same journal

3D nanoprinting of metals by spatiotemporally confined hot electrons via multiple-electron excitations in nanocrystals.

Nature communications·2026

See all related articles

Search research articles

Home
Switching Speed Limits In Electrically Driven Vo2 Structural Mott-peierls Transition.

Home
Switching Speed Limits In Electrically Driven Vo2 Structural Mott-peierls Transition.

Related Experiment Video

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

Published on: May 13, 2020

Switching speed limits in electrically driven VO₂ structural Mott-Peierls transition.

Alexandre Pofelski¹, Chuhang Liu², Spencer A Reisbick²

¹Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York, USA. pofelska@mcmaster.ca.

Nature Communications

|February 24, 2026

View abstract on PubMed

Summary

This summary is machine-generated.

Researchers visualized the ultrafast dynamics of vanadium dioxide (VO2) switching using a novel electron microscope. They found that phonon-mediated recovery limits GHz switching, but device engineering can tune reversible operation.

More Related Videos

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Related Experiment Videos

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx

Published on: May 13, 2020

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Electric-field Control of Electronic States in WS2 Nanodevices by Electrolyte Gating

Published on: April 12, 2018

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

All-electronic Nanosecond-resolved Scanning Tunneling Microscopy: Facilitating the Investigation of Single Dopant Charge Dynamics

Published on: January 19, 2018

Area of Science:

Condensed Matter Physics
Materials Science
Quantum Electronics

Background:

Mott materials are crucial for next-generation electronics and photonics.
Vanadium dioxide (VO2) exhibits a near-room-temperature insulator-to-metal transition, making it a key research material.
Understanding VO2 phase transition dynamics is vital for advanced applications.

Purpose of the Study:

To directly visualize the electrically driven transition dynamics in VO2.
To investigate the ultrafast nucleation, propagation, and dissolution of metallic domains.
To determine the factors limiting reversible switching at high frequencies.

Main Methods:

Utilized a microwave-driven, frequency-tunable pulsed transmission electron microscope.

Achieved nanometer spatial and picosecond temporal resolution.

Studied VO2 devices under high-frequency (MHz-GHz) electrical excitation.

Main Results:

Observed ultrafast formation of metallic nuclei beneath electrodes in VO2.
Captured structural phase front propagation at 4.54 nm/ns.
Identified phonon-mediated structural recovery as the limiting factor for GHz reversible switching.

Conclusions:

Phonon-mediated recovery limits VO2 reversible switching at GHz frequencies.
Reversible operation can be tuned from kHz to GHz through device engineering.
The developed technique offers a framework for studying non-equilibrium transformations in functional materials.