344 citations · 772 across the 25 of their papers we have counts for
8 papers · 1 filter
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…
Field-induced Bose-Einstein condensation and supersolid in the two-dimensional Kondo necklace
Wei-Lin Tu, Eun-Gook Moon, Kwan-Woo Lee +2
The application of an external magnetic field of sufficient strength to a spin system composed of a localized singlet can overcome the energy gap and trigger bosonic condensation a…
Symmetry-protected Spinful Magnetic Weyl Nodal Loops and Multi-Weyl Nodes in Cubic Double Perovskites
Young-Joon Song, K. -W. Lee
Using both an effective three-band model and {\it ab initio} calculations, we have investigated various topological features in the cubic ferromagnetic systems showing l…
Stability of Room Temperature Compensated Half-Metallicity in Cr-based Inverse-Heusler Compounds
Hyo-Sun Jin, K. -W. Lee
Using three correlated band approaches, namely the conventional band approach plus on-site Coulomb repulsion , the modified Becke-Johnson functional, and hybrid functional, we h…
Perovskite ThTaN3: a Large Thermopower Topological Crystalline Insulator
Myung-Chul Jung, K. -W. Lee, W. E. Pickett
ThTaN, a rare cubic perovskite nitride semiconductor, has been studied using {\it ab initio} methods. Spin-orbit coupling (SOC) results in band inversion and a band gap of 150…
Spin-orbit interaction driven collective electron-hole excitations in a noncentrosymmetric nodal loop Weyl semimetal
Kyo-Hoon Ahn, K. -W. Lee, W. E. Pickett
NbP is one member of a new class of nodal loop semimetals characterized by the cooperative effects of spin-orbit coupling (SOC) and a lack of inversion center. Here transport and s…
Effects of Magnetovolume and Spin-orbit Coupling in the Ferromagnetic Cubic Perovskite BaRuO3
Young-Joon Song, K. -W. Lee
BaRuO3 having five different crystal structures has been synthesized by varying the pressure while sintering. Contrary to the other phases being nonmagnetic, the cubic perovskite p…
Evaluation of Half-metallic Antiferromagnetism in CrFeO ({}=La, Sr
K. -W. Lee, Kyo-Hoon Ahn
The nearly well-ordered double perovskite LaCrFeO has been synthesized recently. Contrary to previous theoretical predictions, but in agreement with experimental observatio…