Researchers from the University of Missouri have discovered a new type of quasiparticle in magnetic materials. Quasiparticles are disturbances in materials that behave like particles. The researchers have found that these new quasiparticles are present in all magnetic materials, regardless of their strength or temperature.
This finding changes what we thought about magnetism, showing it's more dynamic than previously thought.
"We've all seen the bubbles that form in sparkling water or other carbonated drinks," says research co-leader Carsten Ullrich in a press release issued by the University of Missouri. "These quasiparticles are like those bubbles, moving freely around at surprisingly high speeds."
This could open the door to developing a new generation of electronics that are not only faster and smarter but also significantly more energy-efficient.
One area this could help is spintronics, or spin electronics. Traditional electronics rely on the electrical charge of electrons for storing and processing information. In contrast, spintronics leverages the natural spin of electrons, which is fundamentally linked to their quantum nature. New electronics based on spintronics could, for example, make devices like cell phones last much longer on one charge.
"Electrons have two properties: charge and spin," explains research co-leader Deepak Singh. "By focusing on the spin aspect instead of the conventional charge, we can achieve greater efficiency because spin loses much less energy."
Physics research could lead to better electronics
The researchers describe the methods and results of this study in a paper titled “Emergent topological quasiparticle kinetics in constricted nanomagnets,” published in Physical Review Research.
The results of the study suggest that universal dynamical behavior "can be prevalent in nanoscopic magnets, irrespective of the nature of the underlying magnetic material."
This new study builds upon and extends the team's previous work, which was published in Nature Communications, where the researchers first described this dynamic behavior at the nanoscale.
The implications of this work are vast, potentially revolutionizing how we understand and manipulate magnetic materials for technological advancements and better electronics.
