The Canadian Association of Physicists (CAP) is pleased to announce that the 2026 CAP/DCMMP Brockhouse Medal is awarded to Young-June Kim, University of Toronto, in recognition of his pioneering contributions to quantum magnetism, including the discovery that the material alpha-RuCl₃ may realize the topological magnetic state predicted by Alexei Kitaev, and for his leadership in elucidating its properties, culminating in key experimental signatures of a Kitaev spin liquid under high magnetic fields; work that has advanced the search for Majorana fermions and opened promising pathways toward topological quantum computing.