Fr\"ohlich polaron effective mass and localization length in cubic materials: degenerate and anisotropic electronic bands

Bogdan Guster, Pedro Melo, Bradley A. A. Martin, Véronique Brousseau-Couture, Anna Miglio, Matteo Giantomassi, Michel Côté, Jarvist M. Frost, Matthieu J. Verstraete, and Xavier Gonze 5 European Theoretical Spectroscopy Facility, Institute of Condensed Matter and Nanosciences, Université catholique de Louvain, Chemin des étoiles 8, bte L07.03.01, B-1348 Louvain-la-Neuve, Belgium NanoMat/Q-Mat/CESAM and European Theoretical Spectroscopy Facility, Université de Liège (B5), B-4000 Liège, Belgium Department of Physics, Imperial College London, Exhibition Road, London SW7 2AZ, UK 4 Département de Physique et Regroupement Québécois sur les Matériaux de Pointe, Université de Montreal, C.P. 6128, Succursale Centre-Ville, Montreal, Canada H3C 3J7 Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Nobel St. 3, Moscow, 143026, Russia. (Dated: September 28, 2021)