89 citations · 429 across the 22 of their papers we have counts for
8 papers · 1 filter
Correlation Effects on Magnetic Structure and Lattice Dynamics of LaMnO: A First-Principles Study
Haeyoon Jung, Indukuru Ramesh Reddy, Bongjae Kim +2
LaMnO, a quadruple perovskite oxide (AA'BO-type), has attracted attention for its notable bifunctional activity in oxygen evolution and reduction reaction…
Exploring the role of nonlocal Coulomb interactions in perovskite transition metal oxides
Indukuru Ramesh Reddy, Chang-Jong Kang, Sooran Kim +1
Employing the density functional theory incorporating on-site and inter-site Coulomb interactions (DFT+U+V), we have investigated the role of the nonlocal interactions on the elect…
Lattice and Electronic properties of VO with the SCAN(+) approach
Sooran Kim
Appropriate consideration of the electron correlation is essential to reproduce the intriguing metal-insulator transition accompanying the Peierls-type structural transition in VO$…
Emergence of Kondo resonance in graphene intercalated with cerium
Jinwoong Hwang, Kyoo Kim, Hyejin Ryu +11
The interaction between a magnetic impurity, such as cerium (Ce) atom, and surrounding electrons has been one of the core problems in understanding many-body interaction in solid a…
Honeycomb Charge Ordering in IrTe
Hyo Sung Kim, Soo-Ran Kim, Kyoo Kim +4
We report on the observation of a unique honeycomb charge ordering of the cleaved IrTe surface by high-resolution scanning tunneling microscopy (STM) and spectroscopy (STS). Ir…
Termination-dependent Surface In-gap States in a Mixed-valent Topological Insulator: SmB
Junwon Kim, Kyoo Kim, Chang-Jong Kang +5
We have investigated the surface states of a potential mixed-valent topological insulator SmB based on the first principles density functional theory slab band structure analys…
Structural instability and the Mott-Peierls transition in a half-metallic hollandite : KCrO
Sooran Kim, Kyoo Kim, B. I. Min
In order to explore the driving mechanism of the concomitant metal-insulator and structural transitions in quasi-one-dimensional hollandite KCrO, electronic stru…
Correlation Assisted Phonon Softenings and the Mott-Peierls Transition in VO
Sooran Kim, Kyoo Kim, Chang-Jong Kang +1
To explore the driving mechanisms of the metal-insulator transition (MIT) and the structural transition in VO2, we have investigated phonon dispersions of rutile VO2 (R-VO2) in the…