Qimin Yan,1,2 Emmanouil Kioupakis,1,3 Debdeep Jena,4 and Chris G. Van de Walle1 1Materials Department, University of California, Santa Barbara, California 93106-5050, USA 2Molecular Foundry, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 3Department of Materials Science and Engineering, University of Michigan, Ann Arbor, Michigan 48109, USA 4Department of Electrical Engi...