Researchers from the Johannes Gutenberg University Mainz, in cooperation with Utrecht University and the Center for Quantum Spintronics (QuSpin) at the Norwegian University of Science and Technology (NTNU), demonstrated that the antiferromagnetic material iron oxide is a promising magnon spintronics material.

An electrical current in a platinum wire creates a magnetic wave in the antiferromagnetic iron oxide

Iron oxide is a cheap material (it is the main material in rusted iron) that was shown to be able to carry magnon over long distances, with low access heat. For their demonstration, the researchers used used platinum wires on top of the insulating iron oxide. An electric current was introduced which led to the creation of magnons in the iron oxide.