2 papers
cond-mat.mtrl-sci2026
Catalog of Altermagnetism in Magnetic Wallpaper/Space Groups and Nonsymmorphic Altermagnets
Congcong Le, Fan Cui, Iao-Fai Io +3
Conventional altermagnetism, characterized by compensated collinear spin alignment and spin splitting, exhibits identical spin states at opposite momenta. In this work, we employ a…
cond-mat.str-el2026
Non-Hermitian free-fermion critical systems and logarithmic conformal field theory
Iao-Fai Io, Fu-Hsiang Huang, Chang-Tse Hsieh
Conformal invariance often accompanies criticality in Hermitian systems. However, its fate in non-Hermitian settings is less clear, especially near exceptional points where the Ham…