111 citations · 551 across the 16 of their papers we have counts for
11 papers · 1 filter
Universal metastability of the low-spin state in Co systems: non-Mott type pressure-induced spin-state transition in CoCl
Bongjae Kim, Kyoo Kim, B. I. Min
We have investigated the pressure-induced spin-state transition in Co systems in terms of a competition between the Hund's exchange energy () and the crystal-field splitt…
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…
Quantum Oscillations of the Metallic Triangular-lattice Antiferromagnet PdCrO2
Jong Mok Ok, Y. J. Jo, K. Kim +6
We report the de Haas-van Alphen (dHvA) oscillations and first-principle calculations for triangular antiferromagnet PdCrO2 showing unconventional anomalous Hall effect (AHE). The…
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…
Fermi Surface Reconstruction in CeTe2 Induced by Charge Density Wave: ARPES Study
J. -S. Kang, D. H. Kim, H. J. Lee +10
Electronic structures of a charge-density-wave CDW system CeTe_2-xSb_x (x=0, 0.05) have been investigated by employing angle-resolved photoemission spectroscopy (ARPES). The observ…
Mott physics in electron dioxygenyl magnet : OF (=Sb, Pt)
Minjae Kim, B. I. Min
We have investigated electronic structures and magnetic properties of OF (=Sb, Pt), which are composed of two building blocks of strongly correlated electrons: O$…
Spin-polaron model: transport properties of EuB
Jayita Chatterjee, Unjong Yu, B. I. Min
To understand anomalous transport properties of EuB, we have studied the spin-polaron Hamiltonian incorporating the electron-phonon interaction. Assuming a strong exchange inte…
Half-metallic antiferromagnets in double perovskites: LaAVRuO (A=Ca, Sr, and Ba)
J. H. Park, S. K. Kwon, B. I. Min
Based on the theoretical exploration of electronic structures, we propose that the ordered double perovskites LaAVRuO and LaVO/ARuO (001) superlattice (A = Ca, Sr and B…
Charge and Orbital Ordering and Spin State Transition Driven by Structural Distortion in YBaCo_2O_5
S. K. Kwon, B. I. Min
We have investigated electronic structures of antiferromagnetic YBaCo_2O_5 using the local spin-density approximation (LSDA) + U method. The charge and orbital ordered insulating g…
Itinerant ferromagnetism in half-metallic CoS_2
S. K. Kwon, S. J. Youn, B. I. Min
We have investigated electronic and magnetic properties of the pyrite-type CoS_2 using the linearized muffin-tin orbital (LMTO) band method. We have obtained the ferromagnetic grou…
Isotope effects and the charge gap formation in the charge ordered phase of colossal magnetoresistance manganites
Unjong Yu, Yu. V. Skrypnyk, B. I. Min
Giant oxygen isotope effects observed in colossal magnetoresistance manganites are investigated by employing the combined model of the double exchange and interacting lattice polar…