3 papers
cond-mat.mtrl-sci2026
Ferroaxial magnets: time-reversal-even mirror symmetry violation from spin order
Hikaru Watanabe, Yue Yu, Jin Matsuda +2
We investigate ferroaxial magnets, a new class of spin-order-driven multiferroic magnets in which magnetic ordering induces mirror-symmetry breaking while preserving both time-reve…
cond-mat.str-el2026
Parity and time-reversal invariant Ising spin ordering
Yue Yu, Jin Matsuda, Hikaru Watanabe +2
The interplay of antiferromagnetic order, momentum-dependent Bloch spin-splitting, time-reversal (T), and parity (P) symmetries in non-relativistic systems has emerged as a central…
cond-mat.mtrl-sci2025
Multiferroic collinear antiferromagnet with hidden altermagnetic split
Jin Matsuda, Hikaru Watanabe, Ryotaro Arita
Altermagnets exhibit nonrelativistic spin splitting due to the breaking of time-reversal symmetry and have been garnering significant attention as promising materials for spintroni…