572 citations · 887 across the 10 of their papers we have counts for
Showing 2021Show all
3 papers · 1 filter
cond-mat.mes-hall2021★ 31 cited
Symmetry invariants and classes of quasiparticles in magnetically ordered systems having weak spin-orbit coupling
Jian Yang, Zheng-Xin Liu, Chen Fang
Symmetry invariants of a group specify the classes of quasiparticles, namely the classes of projective irreducible co-representations in systems having that symmetry. More symmetry…
math-ph2021★ 6 cited
A Hamiltonian Approach for Obtaining Irreducible Projective Representations and the Perturbation for Anti-unitary Symmetry Groups
Zhen-Yuan Yang, Jian Yang, Chen Fang +1
As is known, the irreducible projective representations (Reps) of anti-unitary groups contain three different situations, namely, the real, the complex and quaternion types with to…
cond-mat.mes-hall2021★ 23 cited
Symmetry-protected Nodal Points and Nodal Lines in Magnetic Materials
Jian Yang, Chen Fang, Zheng-Xin Liu
Nodal-point and Nodal-line structures in the dispersion of electron energy bands are characterized by their high degeneracy in certain corners or lines in the Brillouin zone (BZ).…