507 citations · 2.4k across the 32 of their papers we have counts for
32 papers
Bulk-to-surface misorientation and the spin texture of topological insulators
N. Klier, F. Rost, R. Gupta +3
Weak topological insulators possess a symmetry related set of Dirac-Weyl cones in the surface Brillouin zone, implying misorientation between the principle axis of the low energy m…
A non-perturbative theory of effective Hamiltonians: example of moiré materials
F. Rost, R. Gupta, M. Fleischmann +7
We demonstrate that there exists a continuum Hamiltonian that is formally the operator equivalent of the general tight-binding method, inheriting the associativi…
Tuning topological surface magnetism by bulk alloying
N. Klier, S. Sharma, O. Pankratov +1
Deploying an analytical atomistic model of the bulk band structure of the IV-VI semiconductors we connect the spin structure of the topological surface state to the crystal field a…
Bulk physics entwined with a topological surface state
N. Klier, S. Sharma, O. Pankratov +1
For the IV-VI semiconductor family we derive an exact relation between the microscopic gap edge wave functions of the bulk insulator and the Dirac-Weyl topological surface state wa…
Semiclassics for matrix Hamiltonians: The Gutzwiller trace formula and applications to the graphene-type systems
M. Vogl, O. Pankratov, S. Shallcross
We have extended the semi-classical theory to include a general account of matrix valued Hamiltonians, i.e. those that describe quantum systems with internal degrees of freedoms, b…
Electron-phonon scattering and in-plane electric conductivity in twisted bilayer graphene
N. Ray, M. Fleischmann, D. Weckbecker +3
We have surveyed the in-plane transport properties of the graphene twist bilayer using (i) a low-energy effective Hamiltonian for the underlying electronic structure, (ii) an isotr…