18 citations · 25 across the 7 of their papers we have counts for
7 papers
Two distinct gap structures in the mid-infrared optical conductivity of the Hubbard model
Dongwook Kim, Karsten Held
Mid-infrared (MIR) optical conductivities in cuprate superconductors show universal features. In this study, we demonstrate that these originate from two distinct gaps: the pseudog…
Universal Signature of Hundness and Its Quantification
Dongwook Kim, Ina Park, Bo Gyu Jang +1
Hund's coupling induces fundamentally different correlation effects from Hubbard . This leads to a violation of the Brinkman--Rice scenario and the emergence of a Janus-face…
Correlation-driven tunability of altermagnetism in RuO
Ina Park, Dongwook Kim, Inho Lee +3
RuO has been regarded as a prototypical candidate for metallic altermagnet, offering a potential platform for high-speed and high-efficiency spintronics. However, the magnetic…
Optical transitions of a single nodal ring in SrAs: radially and axially resolved characterization
Jiwon Jeon, Jiho Jang, Hoil Kim +7
SrAs is a unique nodal-line semimetal that contains only a single nodal ring in the Brillouin zone, uninterrupted by any trivial bands near the Fermi energy. We performed axis-…
Realization of ideal flat band by rotated d-orbitals in Kagome metals
Dongwook Kim, Feng Liu
Recently there has been intense interest in Kagome metals, which are expected to host flat bands (FBs). However, the observed FBs are non-ideal as they are not flat over the whole…
Nanomechanical Characterization of an Antiferromagnetic Topological Insulator
Shuwan Liu, Su Kong Chong, Dongwook Kim +7
The antiferromagnetic topological insulator MnBi2Te4 (MBT) exhibits an ideal platform to study exotic topological phenomena and magnetic properties. The transport signatures of mag…
Kondo interaction in FeTe and its potential role in the magnetic order
Younsik Kim, Minsoo Kim, Min-Seok Kim +16
Finding d-electron heavy fermion (HF) states has been an important topic as the diversity in d-electron materials can lead to many exotic Kondo effect-related phenomena or new stat…