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cond-mat.mtrl-sci2025
Symmetry-Breaking Magneto-Optical Effects in Altermagnets
Jiuyu Sun, Yongping Du, Erjun Kan
The recently discovered altermagnets (AMs), hosting momentum-dependent spin splitting and vanishing net magnetization, have attracted intensive attention for their promising applic…
cond-mat.mes-hall2025
Optical Controllable Spin-Polarization in Two Dimensional Altermagnets via Robust Spin-Momentum Locking Excitons
Jiuyu Sun, Jinzhe Han, Yongping Du +1
Spin-momentum locking (SML) excitons in two-dimensional semiconductors are appealing to programmable optical control of spin-polarized carriers in ultrafast spintronics. To address…
cond-mat.mtrl-sci2025
Finite-momentum dielectric function and excitonic effects from time-dependent density-functional theory with dielectrically screened hybrid functionals
Didarul Alam, Jiuyu Sun, Carsten A. Ullrich
This paper studies the performance of time-dependent density-functional theory (TDDFT) for calculating the dielectric function of semiconductors and insulators at finite momentum t…