Topology and the Renormalization Group (RG) are powerful concepts guiding our understanding of modern materials. Topology classifies emerging properties robust to local perturbations seen in a host of latest quantum materials. RG monitors changes in physical behavior according to the scale of observation, providing a framework to characterize universal behavior near phase transitions. Bringing these … More Superconductivity in Hofstadter Materials
Prof. Luiz Santos and his graduate student Jian Wang have proposed a new framework for the realization of topological phase transitions in graphene superlattices. Two-dimensional superlattices, where electrons experience a long length scale periodic potential, have emerged in recent years as versatile platforms to realize exotic forms of quantum matter. A remarkable example of such … More Santos Group Advances Frontier of Topological Phases in Graphene Superlattices
President Fenves of Emory University named Prof. Sergei Urazhdin as Samuel Candler Dobbs Professor of Physics Sept. 1, 2020, stating that the “designation of distinguished professor is one of the highest honors that Emory bestows upon a member of the faculty” that “recognizes your eminence as a scholar, as well as the accomplishments that have … More Prof. Sergei Urazhdin named as Samuel Candler Dobbs Professor of Physics by President of Emory Uni.
Prof. Urazhdin and collaborators solve the long-standing problem of nonlinear damping in magnetic films. When the amplitude of oscillations in some dynamical systems become large, they start to experience nonlinear relaxation that suppresses large-amplitude dynamics. Among many manifestations of this adverse effect, it has prevented the development of efficient microwave oscillators based on magnetic materials. … More Prof. Urazhdin & collaborators solve the long-standing problem of nonlinear damping in magnetic film