Intertwined Weyl phases: higher-order topology meets unconventional Weyl fermions via crystalline symmetry

W. B. Rui,1, ∗ Zhen Zheng,1 Moritz M. Hirschmann,2 Song-Bo Zhang,3 Chenjie Wang,1, † and Z. D. Wang1, ‡ Department of Physics and HKU-UCAS Joint Institute for Theoretical and Computational Physics at Hong Kong, The University of Hong Kong, Pokfulam Road, Hong Kong, China Max-Planck-Institute for Solid State Research, Heisenbergstrasse 1, D-70569 Stuttgart, Germany Institute for Theoretical Physics and Astrophysics, University of Würzburg, D-97074 Würzburg, Germany (Dated: May 19, 2021)