39 citations · 133 across the 12 of their papers we have counts for
12 papers
Anomalous Behavior of the Ni moment in bi-infinite-layered LaNiOF
Young-Joon Song, W. E. Pickett, K. -W. Lee
The discovery of superconductivity in hole-doped Ni systems with ``infinite layer" NiO square-lattices analogous to the Cu CaCuO cuprate has renewed conflicti…
Dichotomous electronic system in a bilayer Ni nickelate
Young-Joon Song, K. -W. Lee, W. E. Pickett
"Infinite layer" nickelates (ILNs) NiO (=rare earth), having empty apical O sites, become superconducting upon hole doping, stimulating research into the re…
Influence of magnetism, strain and pressure on the band topology of EuCdAs
Adrian Valadkhani, Mikel Iraola, Axel Fünfhaus +4
Motivated by the wealth of proposals and realizations of nontrivial topological phases in EuCdAs, such as a Weyl semimetallic state and the recently discussed semimetallic…
Microscopic analysis of the valence transition in tetragonal EuPdSi
Young-Joon Song, Susanne Schulz, Kristin Kliemt +2
Under temperature or pressure tuning, tetragonal EuPdSi is known to undergo a valence transition from nearly divalent to nearly trivalent Eu accompanied by a volume reducti…
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…
Noncentrosymmetric compensated half-metal hosting pure spin Weyl nodes, triple nodal points, nodal loops, and nexus fermions
Hyo-Sun Jin, Young-Joon Song, W. E. Pickett +1
Materials containing multiple topological characteristics become more exotic when combined with noncentrosymmetric crystal structures and unusual magnetic phases such as the compen…
Tuning ferromagnetic BaFe(PO) through a high Chern number topological phase
Young-Joon Song, Kyo-Hoon Ahn, W. E. Pickett +1
There is strong interest in discovering or designing wide gap Chern insulators. Here we follow a Chern insulator to trivial Mott insulator transition versus interaction strength U…
Large orbital moment and spin-orbit enabled Mott transition in the Ising Fe honeycomb lattice BaFe2(PO4)2
Young-Joon Song, K. -W. Lee, W. E. Pickett
BaFe2(PO4)2 is an unusual Ising insulating ferromagnet based on the Fe spin = 2 ion, the susceptibility of which suggests a large orbital component to the Fe local momen…
Unquenched orbital moment in the Mott insulating antiferromagnet KOsO4
Young-Joon Song, Kyo-Hoon Ahn, K. -W. Lee +1
Applying the correlated electronic structure method based on density functional theory plus the Hubbard interaction, we have investigated the tetragonal scheelite structure Mot…
Experimental percolation studies of two-dimensional honeycomb lattice: Li2Mn1-xTixO3
Sanghyun Lee, Junghwan Park, Jiyeon Kim +3
Li2MnO3 with a S=3/2 two-dimensional Mn honeycomb lattice has a Neel-type antiferromagnetic transition at TN=36 K with a broad maximum in the magnetic susceptibility at TM=48 K. We…
Structural and Correlation Effects in the Itinerant Insulating Antiferromagnetic Perovskite NaOsO3
Myung-Chul Jung, Young-Joon Song, K. -W. Lee +1
The orthorhombic perovskite NaOsO3 undergoes a continuous metal-insulator transition (MIT), accompanied by antiferromagnetic (AFM) order at T_N=410 K, suggested to be an example of…
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…