481 citations · 499 across the 4 of their papers we have counts for
5 papers · 1 filter
Boundary-obstructed topological phases
Eslam Khalaf, Wladimir A. Benalcazar, Taylor L. Hughes +1
Symmetry protected topological (SPT) phases are gapped phases of matter that cannot be deformed to a trivial phase without breaking the symmetry or closing the bulk gap. Here, we i…
Spin-polarized Correlated Insulator and Superconductor in Twisted Double Bilayer Graphene
Xiaomeng Liu, Zeyu Hao, Eslam Khalaf +5
Ferromagnetism and superconductivity typically compete with each other since the internal magnetic field generated in a magnet suppresses the formation of spin-singlet Cooper pairs…
Shift insulators: rotation-protected two-dimensional topological crystalline insulators
Shang Liu, Ashvin Vishwanath, Eslam Khalaf
We study a two-dimensional (2D) tight-binding model of a topological crystalline insulator (TCI) protected by rotation symmetry. The model is built by stacking two Chern insulators…
Robust weak antilocalization due to spin-orbital entanglement in Dirac material SrSnO
H. Nakamura, D. Huang, J. Merz +5
The presence of both inversion () and time-reversal () symmetries in solids leads to a well-known double degeneracy of the electronic bands (Kramers degeneracy). When the deg…
Dynamics of Anderson localization in disordered wires
E. Khalaf, P. M. Ostrovsky
We consider the dynamics of an electron in an infinite disordered metallic wire. We derive exact expressions for the probability of diffusive return to the starting point in a give…