We've updated our Privacy Policy to make it clearer how we use your personal data. We use cookies to provide you with a better experience. You can read our Cookie Policy here.


Physicists Create Powerful Magnets To De-Freeze Quantum Computing

A computer chip on a keyboard.
Credit: David Latorre Romero/ Unsplash
Listen with
Register for free to listen to this article
Thank you. Listen to this article using the player above.

Want to listen to this article for FREE?

Complete the form below to unlock access to ALL audio articles.

Read time: 1 minute

Quantum computing has the potential to revolutionize the world, allowing massive health and science computation problems to be solved exponentially faster than by classic computing. But quantum computers have a big drawback – they can only operate in subzero temperatures.

“In order to make quantum computers work, we cannot use them at room temperature,” said Ahmed El-Gendy, Ph.D., an associate professor of physics at The University of Texas at El Paso. “That means we will need to cool the computers and cool all the materials, which is very expensive.”

Now, physicists at The University of Texas at El Paso believe they have made a quantum leap in that regard. Led by El-Gendy, the team has developed a highly magnetic quantum computing material — 100 times more magnetic than pure iron — that functions at regular temperature. The material is described in a summer issue of the journal Applied Physics Letters

Magnets are used in many modern applications, including smartphones, vehicles and solid state drives — where computers’ information is stored. In quantum computers, magnets are used to enhance speed, said Ahmed, but their strong magnetic properties only work in low temperature. (Quantum computers, in fact, are currently kept at the cool temperature of -459 degrees Fahrenheit, right above absolute zero.)

Since 2019, the UTEP team has worked to create entirely new magnetic materials for quantum computing. In addition to operating in regular temperatures, the team has focused on magnets that are not made from rare Earth materials. 

Want more breaking news?

Subscribe to Technology Networks’ daily newsletter, delivering breaking science news straight to your inbox every day.

Subscribe for FREE
“All magnets are currently made from rare Earth materials, and we have a shortage of them,” El-Gendy said. “We’re going to face a problem soon of not having these materials to make magnets for any industry. Imagine if we get to that point.”

After several years of trial and error, the team’s efforts paid off. The final winner was a mixture of materials known aminoferrocene and graphene — and to El-Gendy’s surprise, the material demonstrates extremely powerful magnetism.

“I was really doubting its magnetism, but our results show clearly superparamagnetic behavior,” he said. “No one has prepared a material like this before. I think we could go make a quantum computer at room temperature with this.”

But much work remains. The material was difficult to make and the team is now trying to optimize the preparation process and continue improving the material’s effectiveness. They are also seeking collaborators who work in quantum computing.  

Reference: Getahun YW, Manciu FS, Pederson MR, El-Gendy AA. Room temperature colossal superparamagnetic order in aminoferrocene–graphene molecular magnets. Appl Phys Lett. 2023;122(24):241903. doi: 10.1063/5.0153212

This article has been republished from the following materials. Note: material may have been edited for length and content. For further information, please contact the cited source.