Related Experiment Video
Updated: May 8, 2026

In Situ Transmission Electron Microscopy with Biasing and Fabrication of Asymmetric Crossbars Based on Mixed-Phased a-VOx
Published on: May 13, 2020
Mechanical control of electroresistive switching.
Yunseok Kim1, Simon J Kelly, Anna Morozovska
1The Center for Nanophase Materials Sciences, Oak Ridge National Laboratory , Oak Ridge, Tennessee 37831, United States.
Researchers introduce the piezochemical effect, controlling metal-insulator transitions with mechanical force. This discovery enables new materials physics insights and mechanical data storage with electrical readout.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Hysteretic metal-insulator transitions (MIT) are crucial for nonvolatile memory and logic devices.
- Current research primarily links MIT to electric fields or temperature.
- Ionic dynamics and ferroic phase transitions are key mechanisms in MIT.
Purpose of the Study:
- To propose and investigate the piezochemical effect: controlling MIT via mechanical stimuli.
- To explore novel data storage technologies utilizing mechanical writing and electrical readout.
- To advance the understanding of materials physics through ionic dynamics.
Main Methods:
- Experimental verification of the piezochemical effect.
- Investigating the coupling between mechanical stimuli and ionic dynamics in materials.
- Developing and testing data storage concepts based on mechanical writing and current readout.
Main Results:
- Demonstrated experimental evidence for the piezochemical effect.
- Established that mechanical stimuli can effectively control hysteretic metal-insulator transitions.
- Showcased the potential for novel data storage applications.
Conclusions:
- The piezochemical effect offers a new paradigm for controlling MIT.
- This effect opens avenues for advanced materials characterization.
- Mechanical control of MIT enables innovative, nonvolatile data storage solutions.
More Related Videos
Related Concept Videos
MOSFET: Enhancement Mode
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 current...
Electro-mechanical Systems
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
Characteristics of MOSFET
Various vital parameters influence their functionality, which is crucial for theory and electronics applications. First, channel dimensions, precisely length, and width, are pivotal. The size of these channels affects the transistor's ability to carry current and switching speeds; shorter channels typically enable quicker...
Biasing of FET
In an N-channel JFET, the structure consists of N-type material forming the channel on a P-type substrate, with the gate...
Design Example: Resistive Touchscreen
When a user touches the screen, the two layers make contact at a specific point known as the touchpoint. This contact reduces the resistance between...
Switching of BJT
Cut-off Mode ("Off" State): In this state, both the emitter-base and collector-base junctions are reverse-biased. The...

