5 papers
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…
Interaction-driven flat band and charge order in Fe5GeTe2
Qiang Gao, Gabriele Berruto, Khanh Duy Nguyen +9
Flat electronic bands enable fascinating emergent phenomena such as superconductivity and charge orders. A prevailing approach to realizing flat bands is to engineer lattice geomet…
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…
Hundness in twisted bilayer graphene: correlated gaps and pairing
Seongyeon Youn, Beomjoon Goh, Geng-Dong Zhou +2
We characterize gap-opening mechanisms in the topological heavy fermion (THF) model of magic-angle twisted bilayer graphene (MATBG), with and without electron-phonon coupling, usin…
Orbital anisotropy of heavy fermion CeIrIn under crystalline electric field and its energy scale
Bo Gyu Jang, Beomjoon Goh, Junwon Kim Jae Nyeong Kim +5
We investigate the temperature ()-evolution of orbital anisotropy and its effect on spectral function and optical conductivity in CeIrIn, using a first principles dy…