Physicists Create Magnetic State in Atomic Layers of Transition Metal Oxide

Yanwei Cao
Photo by University Relations

Yanwei Cao

FAYETTEVILLE, Ark. – Physicists at the University of Arkansas and their collaborators have created a magnetic state in a few atomic layers of artificially synthesized materials known as transition metal oxides.

The research team published its findings on Thursday, Jan. 21, in Nature Communications, an online journal published by the journal Nature.

“The key to the next generation of electronics is fabricating transistors that are multifunctional, meaning that a single electric pulse should be able to trigger multiple actions. For example, they can transition between electronic and magnetic states,” said Jak Chakhalian, a professor of physics who directs the Artificial Quantum Materials Laboratory at the U of A.

“This work opens the door to devices based on junctions of correlated electronic materials beyond our current semiconductor devices,” he said.

Yanwei Cao, a postdoctoral physics research associate in the Artificial Quantum Materials Lab, found a way to produce a novel magnetic state in a few atomic sheets of a transition metal oxide comprised of lanthanum and titanium and nickel. He conducted the experiments at the University of Arkansas and Advanced Photon Source at Argonne National Laboratory near Chicago.

The research team included U of A postdoctoral research associates Michael Kareev and Srimanta Middey, doctoral student Xiaoran Liu and recent doctoral graduate Derek Meyers, now at Brookhaven National Laboratory. The team also included Debashish Chowdhury at the Indian Institute of Technology in Kanpur, India; and John W. Freeland, Phillip Ryan and Jong-Woo Kim of the Advanced Photon Source.

In 2014, Chakhalian was selected as a quantum materials investigator for the Gordon and Betty Moore Foundation. His selection came with a $1.8 million grant, a portion of which funded the Nature Communications study.

Contacts

Jak Chakhalian, professor
Department of Physics
479-575-4313, jchakhal@uark.edu

Chris Branam, research communications writer/editor
University Relations
479-575-4737, cwbranam@uark.edu


Editor-selected comments will be published below. No abusive material, personal attacks, profanity, spam or material of a similar nature will be considered for publication.

comments powered by Disqus

Headlines

Students Awarded Summer Internships With the Office of Naval Research

U of A graduate students David French and Stephen Bauman, undergraduate Madison Whitby, and Zachary Brawley, an undergraduate at UCA, have been selected for internships.

Law Professor and Four Students Acknowledged by United Nations

Professor Uché Ewelukwa Ofodile and students Luke Brasuell, Elizabeth Kanopsic, Liliana Vasquez and Saad A. Alotaibi participated in an initiative related to international investment agreements.

Conceal-Carry Legislation Signed

The U of A will work with the UA System as the system establishes policies, guidelines and practices that align with the law that takes effect in September.

Human Nutrition Faculty Offer Advice on Understanding Food Labels

March is National Nutrition Month, and U of A human nutrition faculty explain changes and information included on revised food labels.

J.B. Hunt Transport Services Inc., U of A Create Supply Chain Innovation Center

A $2.75 million grant to the U of A will establish an interdisciplinary center for excellence in supply chain management technology research.

Newswire Daily