News comes from the Center for Discovery and Innovation at City College of New York and the Department of Physics of a new type of magnetic quasiparticle created by coupling light to an array of ultra-thin 2D magnets. This achievement, resulting from a collaboration with the University of Texas at Austin, lays the foundation for an emerging strategy of artificially designing materials by ensuring their strong interaction with light.
“Applying our approach with ferromagnetic materials is a promising path toward effective magneto-optical effects,” said CCNY physicist Vinod M. Menon, whose group led the study. “Achieving this goal could enable its use for applications in everyday devices such as lasers, or for storing digital data.”
Dr. Florian Derenberger, the study’s lead author, believes their work has revealed a largely unexplored world of powerful interactions between light and magnetic crystals. He noted, “Research in recent years has demonstrated a number of atomic flat magnets that are exceptionally well suited to study with our approach.”
Looking ahead, the team plans to extend these investigations to understand the role of the quantum electrodynamic vacuum when placing quantum materials in optical cavities. “Our work paves the way for stabilizing new quantum phases of matter that have no counterpart in thermodynamic equilibrium,” said Eduardo Baldini, associate professor at the University of Texas at Austin.
The research was funded by the National Science Foundation, the Army Research Office, and the CREST-IDEALS Center at CCNY.