3 papers
cond-mat.str-el2026
Bond-Length-Driven Magnetic Transition in Quasi-One-Dimensional CrSb (=S, Se)
Kang Lee, Hong-Suk Choi, K. -W. Lee
Using {\it ab initio} calculations, we investigate the magnetic ground states of quasi-one-dimensional insulating CrSb ( = S, Se) with infinite double-rutile chains. Within…
cond-mat.mtrl-sci2025
Altermagnetism and Weak Magnetism in the Insulating Distorted Perovskite Antiferromagnet NaOsO
Hong-Suk Choi, M. -C. Jung, K. -H. Ahn +2
The GdFeO-type perovskite antiferromagnet NaOsO, calculated here to be altermagnetic for all three typical collinear antiferromagnetic orders, was suggested early on to be…
cond-mat.str-el2025
External field induced metal-to-insulator transition in dissipative Hubbard model
Beomjoon Goh, Junwon Kim, Hongchul Choi +1
In this work, we develop a non-equilibrium steady-state non-crossing approximation (NESS-NCA) impurity solver applicable to general impurity problems. The choice of the NCA as the…