90 citations · 452 across the 17 of their papers we have counts for
8 papers · 1 filter
Bulk-interface correspondence from quantum distance in flat band systems
Chang-geun Oh, Doohee Cho, Se Young Park +1
The bulk-boundary correspondence is an integral feature of topological analysis and the existence of boundary or interface modes offers direct insight into the topological structur…
Sign-tunable anomalous Hall effect induced by two-dimensional symmetry-protected nodal structures in ferromagnetic perovskite oxide thin films
Byungmin Sohn, Eunwoo Lee, Se Young Park +16
Magnetism and spin-orbit coupling (SOC) are two quintessential ingredients underlying novel topological transport phenomena in itinerant ferromagnets. When spin-polarized bands sup…
Unconventional crystal field splitting in non-centrosymmetric BaTiO thin films
Yang Song, Xiaoran Liu, Fangdi Wen +10
Understanding the crystal field splitting and orbital polarization in non-centrosymmetric systems such as ferroelectric materials is fundamentally important. In this study, taking…
Magnetic and electrical anisotropy with correlation and orbital effects in dimerized honeycomb ruthenate LiRuO
Seokhwan Yun, Ki Hoon Lee, Se Young Park +6
Li2RuO3 undergoes a structural transition at a relatively high temperature of 550 K with a distinct dimerization of Ru-Ru bonds on the otherwise isotropic honeycomb lattice. It exh…
Stable hump-like Hall effect and non-coplanar spin textures in SrRuO ultrathin film
Byungmin Sohn, Bongju Kim, Se Young Park +11
We observed a hump-like feature in Hall effects of SrRuO ultrathin films, and systematically investigated it with controlling thicknesses, temperatures and magnetic fields. The…
Metal-insulator transitions in GdTiO3/SrTiO3 superlattices
Se Young Park, Andrew J. Millis
The density functional plus U method is used to obtain the electronic structure, lattice relaxation and metal-insulator phase diagram of superlattices consisting of layers of G…
Charge density distribution and optical response of the LaAlO3/SrTiO3 interface
Se Young Park, Andrew J. Millis
We present calculations of the charge density profile, subband occupancy and ellipsometry spectra of the electron gas at the LaAlO3/SrTiO3 interface. The calculations employ self-c…
Multiferroicity in the spin-1/2 quantum matter of LiCu2O2
A. Rusydi, I. Mahns, S. Mueller +9
Multiferroicity in LiCu2O2 single crystals is studied using resonant soft x-ray magnetic scattering, hard x-ray diffraction, heat capacity, magnetic susceptibility, and electrical…