78 citations · 222 across the 15 of their papers we have counts for
13 papers · 1 filter
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…
Clean realization of the Hund physics near the Mott transition: under pressure
Ina Park, Bo Gyu Jang, Dong Wook Kim +2
Strong correlation effects caused by Hund's coupling have been actively studied during the past decade. Hund's metal, strongly correlated while far from the Mott insulating limit,…
Reversible Non-Volatile Electronic Switching in a Near Room Temperature van der Waals Ferromagnet
Han Wu, Lei Chen, Paul Malinowski +37
The ability to reversibly toggle between two distinct states in a non-volatile method is important for information storage applications. Such devices have been realized for phase-c…
Spectral Evidence for Local-Moment Ferromagnetism in van der Waals Metals FeGaTe and FeGeTe
Han Wu, Chaowei Hu, Yaofeng Xie +26
Magnetism in two-dimensional (2D) materials has attracted considerable attention recently for both fundamental understanding of magnetism and their tunability towards device applic…
One-dimensionality signature in optical conductivity of heavy-fermion CeIrB
Bo Gyu Jang, Kenneth R. O'Neal, Christopher Lane +7
In low dimensions, the combined effects of interactions and quantum fluctuations can lead to dramatically new physics distinct from that existing in higher dimensions. Here, we inv…
Metal to Mott Insulator Transition in Two-dimensional 1T-TaSe
Ning Tian, Zhe Huang, Bo Gyu Jang +17
When electron-electron interaction dominates over other electronic energy scales, exotic, collective phenomena often emerge out of seemingly ordinary matter. The strongly correlate…
Exploring two-dimensional van der Waals heavy-fermion material: Data mining theoretical approach
Bo Gyu Jang, Changhoon Lee, Jian-Xin Zhu +1
The discovery of two-dimensional (2D) van der Waals (vdW) materials often provides interesting playgrounds to explore novel phenomena. One of the missing components in 2D vdW mater…
Lattice dynamical properties of antiferromagnetic oxides calculated using self-consistent extended Hubbard functional method
Wooil Yang, Bo Gyu Jang, Young-Woo Son +1
We study the lattice dynamics of antiferromagnetic transition-metal oxides by using self-consistent Hubbard functionals. We calculate the ground states of the oxides with the on-si…
Intersite Coulomb Interactions in Charge Ordered Systems
Bo Gyu Jang, Minjae Kim, Sang-Hoon Lee +3
Using {\it ab initio} approaches for extended Hubbard interactions coupled to phonons, we reveal that the intersite Coulomb interaction plays important roles in determining various…
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…
Electronic Spin transition in FeO: evidence for Fe(II) with peroxide O
Bo Gyu Jang, Jin Liu, Qingyang Hu +5
The discovery of FeO containing more oxygen than hematite (FeO) that was previously believed to be the most oxygen rich iron compounds, has important implications…
Evolution of the Kondo lattice electronic structure above the transport coherence temperature
Sooyoung Jang, J. D. Denlinger, J. W. Allen +5
The temperature-dependent evolution of the Kondo lattice is a long-standing topic of theoretical and experimental investigation and yet it lacks a truly microscopic description of…
Metal-Insulator Transition and the Role of Electron Correlation in FeO2
Bo Gyu Jang, Duck Young Kim, Ji Hoon Shim
Iron oxide is a key compound to understand the state of the deep Earth. It has been believed that previously known oxides such as FeO and Fe2O3 will be dominant at the mantle condi…