152 citations · 821 across the 23 of their papers we have counts for
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cond-mat.str-el2020★ 3 cited
Field theory of higher-order topological crystalline response, generalized global symmetries and elasticity tetrads
Jaakko Nissinen
We discuss the higher-order topological field theory and response of topological crystalline insulators with no other symmetries. We show how the topology and geometry of the syste…
cond-mat.str-el2020★ 45 cited
Torsional Landau levels and geometric anomalies in condensed matter Weyl systems
Sara Laurila, Jaakko Nissinen
We consider the role of coordinate dependent tetrads ("Fermi velocities"), momentum space geometry, and torsional Landau levels (LLs) in condensed matter systems with low-energy We…
cond-mat.mtrl-sci2020★ 24 cited
Topological polarization, dual invariants, and surface flat band in crystalline insulators
J. Nissinen, Tero T. Heikkila, G. E. Volovik
We describe a three-dimensional crystalline topological insulator (TI) phase of matter that exhibits spontaneous polarization. This polarization results from the presence of (appro…