AUG 28, 2022 10:00 AM PDT

Material Used in Electronics Capable of 'Remembering'

Credit: Pixabay

In a recent study published in Nature Electronics, an international team of researchers have discovered how a compound used in electronics known as vanadium dioxide (VO2) possesses the capability of ‘remembering’ its most recent external stimulus for up to three hours. This study has the potential to increase the demand for materials that can perform calculations with greater capacity, speed, and miniaturization.

Like many scientific discoveries, this one was made by chance, but this time through graduate research on phase transitions in VO2 by Mohammad Samizadeh Nikoo, a PhD student at EPFL's Power and Wide-band-gap Electronics Research Laboratory (POWERlab). While his research was initially focused on phase transitions, Samizadeh Nikoo observed VO2 exhibits a memory effect after taking hundreds of measurements. By additional pulses of current into the material, Samizadeh Nikoo found that the amount of time between each state change was directly linked to the material’s history.

"The VO2 seemed to 'remember' the first phase transition and anticipate the next," explains Prof. Elison Matioli, who heads the POWERlab, and is a co-author on the study. "We didn't expect to see this kind of memory effect, and it has nothing to do with electronic states but rather with the physical structure of the material. It's a novel discovery: no other material behaves in this way."

This discovery is profound because the memory effect is actually an innate property of the material itself, and since engineers depend on memory to perform a wide range of calculations, this discovery opens the door for even greater levels of research.

"The memory effect could in fact persist for several days, but we don't currently have the instruments needed to measure that," said Dr. Matioli.

Sources: Nature Electronics

As always, keep doing science & keep looking up!

About the Author
MS in Geological Sciences
Laurence Tognetti is a six-year USAF Veteran who earned both a BSc and MSc from the School of Earth and Space Exploration at Arizona State University. Laurence is extremely passionate about outer space and science communication, and is the author of “Outer Solar System Moons: Your Personal 3D Journey”.
You May Also Like
OCT 17, 2022
Cell & Molecular Biology
Some Highly Repetitive Protein Sequences are Shared by Many Species
OCT 17, 2022
Some Highly Repetitive Protein Sequences are Shared by Many Species
Gene sequences are made up of nucleotide bases, which are 'read' by the cell's machinery in triplets; three ...
OCT 18, 2022
Earth & The Environment
Snatching CO2 From the Air
OCT 18, 2022
Snatching CO2 From the Air
In a recent study published in Nanoscale, a team of researchers led by the University of Pittsburgh have designed new ma ...
OCT 24, 2022
Technology
Can Smartwatch Apps Overcome Limitations to Detect Atrial Fibrillation?
OCT 24, 2022
Can Smartwatch Apps Overcome Limitations to Detect Atrial Fibrillation?
In a recent study published in the Canadian Journal of Cardiology, an international team of researchers led by Laval Uni ...
OCT 25, 2022
Space & Astronomy
Detection of the Brightest Gamma-Ray Burst Ever
OCT 25, 2022
Detection of the Brightest Gamma-Ray Burst Ever
On October 9, 2022, telescopes detected one of the brightest gamma-ray bursts ever! A gamma-ray burst (GRB) is an extrem ...
NOV 19, 2022
Technology
New BodyTrak Technology Monitors Human Body Mechanics in 3D
NOV 19, 2022
New BodyTrak Technology Monitors Human Body Mechanics in 3D
In a recent study published in the Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies, ...
NOV 23, 2022
Space & Astronomy
JWST Images a Star in the Midst of Formation
NOV 23, 2022
JWST Images a Star in the Midst of Formation
This image can easily be mistaken for a planetary nebula, but it is actually an image of a young star in the midst of fo ...
Loading Comments...