APS Logo

Dresselhaus PrizeThe Fascinating Quantum World of One- and Two-dimensional Materials

ORAL · Invited

Abstract

Many phenomena in nature owe their emergence from the interactions of large number of particles. Enhanced electron interaction and topological effects are often dominant in the quantum properties of reduced-dimensional systems. These effects lead to manifestation of concepts and phenomena that may not be so prominent or have not been seen in the bulk. In this talk, I present some fascinating quantum phenomena discovered in our theoretical and computational studies of the properties of atomically thin one- and two-dimensional materials. A number of interesting and unexpected behaviors have been found – e.g., strongly bound excitons (electron-hole pairs) with highly unusual properties and moiré behaviors; novel topological phases; prominent correlated 3- and 4-particle excitations; enhanced nonlinear optical responses; remarkable field-driven time-dependent effects; correlated excitonic insulator ground states; etc. – adding to the promise of these materials for exploration of new science and valuable applications.

–

Publication: Too numerous to list.

Presenters

  • Steven G Louie

    University of California, Berkeley, University of California, Berkeley and Lawrence Berkeley National Lab, University of California, Berkeley and Lawrence Berkeley National Laboratory, Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory, Department of Physics, University of California at Berkeley, Berkeley, CA, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA

Authors

  • Steven G Louie

    University of California, Berkeley, University of California, Berkeley and Lawrence Berkeley National Lab, University of California, Berkeley and Lawrence Berkeley National Laboratory, Department of Physics, University of California at Berkeley and Materials Sciences Division, Lawrence Berkeley National Laboratory, Department of Physics, University of California at Berkeley, Berkeley, CA, USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, USA