183 citations · 931 across the 16 of their papers we have counts for
9 papers · 1 filter
Tuning the nontrivial topological properties of the Weyl semimetal CeAlSi
M. M. Piva, J. C. Souza, V. Brousseau-Couture +6
In the ferromagnetic Weyl semimetal CeAlSi both space-inversion and time-reversal symmetries are broken. We use external pressure as an effective tuning parameter and relate three…
Fröhlich polaron effective mass and localization length in cubic materials: degenerate and anisotropic electronic bands
Bogdan Guster, Pedro Melo, Bradley A. A. Martin +7
Polarons, that is, charge carriers correlated with lattice deformations, are ubiquitous quasiparticles in semiconductors, and play an important role in electrical conductivity. To…
Temperature dependence of the topological phase transition of BiTeI from first principles
Véronique Brousseau-Couture, Gabriel Antonius, Michel Côté
A topological phase transition from a trivial insulator to a topological insulator requires the bulk band gap to vanish. In the case of noncentrosymmetric materials,…
Dynamical and anharmonic effects on the electron-phonon coupling and the zero-point renormalization of the electronic structure
Gabriel Antonius, Samuel Poncé, Étienne Lantagne-Hurtubise +3
The renormalization of the band structure at zero temperature due to electron-phonon coupling is investigated in diamond, BN, LiF and MgO crystals. We implement a dynamical scheme…
The temperature dependence of electronic eigenenergies in the adiabatic harmonic approximation
Samuel Poncé, Gabriel Antonius, Yannick Gillet +5
The renormalization of electronic eigenenergies due to electron-phonon interactions (temperature dependence and zero-point motion effect) is important in many materials. We address…
Efficient dielectric matrix calculations using the Lanczos algorithm for fast many-body implementations
Jonathan Laflamme Janssen, Bruno Rousseau, Michel Côté
We present a implementation that assesses the two major bottlenecks of traditional plane-waves implementations, the summations over conduction states and the inversion of…