155 citations · 992 across the 20 of their papers we have counts for
4 papers · 1 filter
Statistical mechanics approach to the electric polarization and dielectric constant of band insulators
Frédéric Combes, Maximilian Trescher, Frédéric Piéchon +1
We develop a theory for the analytic computation of the free energy of band insulators in the presence of a uniform and constant electric field. The two key ingredients are a pertu…
Geometric orbital susceptibility: quantum metric without Berry curvature
Frédéric Piéchon, Arnaud Raoux, Jean-Noël Fuchs +1
The orbital magnetic susceptibility of an electron gas in a periodic potential depends not only on the zero field energy spectrum but also on the geometric structure of cell-period…
Chemical potential asymmetry and quantum oscillations in insulators
Hridis K. Pal, Frédéric Piéchon, Jean-Noël Fuchs +2
We present a theory of quantum oscillations in insulators that are particle-hole symmetric and non-topological but with arbitrary band dispersion, at both zero and non-zero tempera…
Fractal dimensions of the wavefunctions and local spectral measures on the Fibonacci chain
Nicolas Macé, Anuradha Jagannathan, Frédéric Piéchon
We present a theoretical framework for understanding the wavefunctions and spectrum of an extensively studied paradigm for quasiperiodic systems, namely the Fibonacci chain. Our an…