摘要
Recent years have witnessed tremendous success in the discovery of topological states of matter.Particularly,sophisticated theoretical methods in time-reversal-invariant topological phases have been developed,leading to the comprehensive search of crystal database and the prediction of thousands of topological materials.In contrast,the discovery of magnetic topological phases that break time reversal is still limited to several exemplary materials because the coexistence of magnetism and topological electronic band structure is rare in a single compound.To overcome this challenge,we propose an alternative approach to realize the quantum anomalous Hall(QAH)effect,a typical example of magnetic topological phase,via engineering two-dimensional(2D)magnetic van der Waals heterojunctions.
基金
Department of Energy under Award#DESC0019275 for the design of data-driven discovery pipeline and the first-principles computational work
J.Y.and C.X.L.acknowledge the support of DOE grant(DESC0019064)for the analytical model and symmetry analysis,and the Office of Naval Research(Grant number N00014-18-1-2793)
as well as Kaufman New Initiative research grant of the Pittsburgh Foundation.A.J.acknowledges support from U.S.DOE SE-SC0014388
S.X.D.thanks the International Partnership Program of Chinese Academy of Sciences,Grant number 112111KYSB20160061
It benefitted from the supercomputing resources of the National Energy Research Scientific Computing Center(NERSC),a U.S.Department of Energy Office of Science User Facility operated under Contract number DE-AC02-05CH11231.
