3 papers
cond-mat.mes-hall2019
Hybrid kernel polynomial method
Muhammad Irfan, Sathish R. Kuppuswamy, Daniel Varjas +4
The kernel polynomial method allows to sample overall spectral properties of a quantum system, while sparse diagonalization provides accurate information about a few important stat…
cond-mat.mes-hall2019
Topological phases without crystalline counterparts
Daniel Varjas, Alexander Lau, Kim Pöyhönen +3
Recent years saw the complete classification of topological band structures, revealing an abundance of topological crystalline insulators. Here we theoretically demonstrate the exi…
cond-mat.mes-hall2018
The influence of lattice termination on the edge states of the quantum spin Hall insulator monolayer -WTe
Alexander Lau, Rajyavardhan Ray, Daniel Varjas +1
We study the influence of sample termination on the electronic properties of the novel quantum spin Hall insulator monolayer -WTe. For this purpose, we construct an accura…