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Dive into the research topics where Hong Chul Choi is active.

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Featured researches published by Hong Chul Choi.


Physical Review B | 2014

Termination-dependent surface in-gap states in a potential mixed-valent topological insulator: SmB 6

J.-Y. Kim; Kyoo Kim; Chang-Jong Kang; Sooran Kim; Hong Chul Choi; J.-S. Kang; J. D. Denlinger; B. I. Min

We have investigated the surface states of a potential mixed-valent topological insulator SmB


Physical Review Letters | 2012

Temperature-dependent Fermi surface evolution in heavy fermion CeIrIn5

Hong Chul Choi; B. I. Min; Ji Hoon Shim; Kristjan Haule; Gabriel Kotliar

_6


Physical Review B | 2010

Antiferromagnetic and structural transitions in the superoxide KO 2 from first principles: A 2 p -electron system with spin-orbital-lattice coupling

Minjae Kim; Beom Hyun Kim; Hong Chul Choi; B. I. Min

based on the first principles density functional theory slab band structure analysis. We have found that metallic surface states are formed in the bulk band gap region, providing evidence for the topological insulating nature of SmB


New Journal of Physics | 2013

Correlated electronic structures and the phase diagram of hydrocarbon-based superconductors

Minjae Kim; Hong Chul Choi; Ji Hoon Shim; B. I. Min

_6


Journal of Applied Physics | 2007

Electronic structures and magnetic properties of layered compound RCrSb3 (R=La,Yb)

Hong Chul Choi; Ji Hoon Shim; S. K. Kwon; B. I. Min

. The obtained surface in-gap states are quite different from those in existing reports in that they are formed differently depending on the Sm or B


Physical Review Letters | 2015

Topological Properties and the Dynamical Crossover from Mixed-Valence to Kondo-Lattice Behavior in the Golden Phase of SmS.

Chang-Jong Kang; Hong Chul Choi; Kyoo Kim; B. I. Min

_6


Journal of Applied Physics | 2009

Electronic structures and magnetic properties of a ferromagnetic insulator: La2MnNiO6

Bongjae Kim; Ji Eun Lee; Beom Hyun Kim; Hong Chul Choi; Kyoo Kim; J.-S. Kang; B. I. Min

surface termination, and are composed of mainly Sm


New Journal of Physics | 2008

Electronic structures of magnetic semiconductors FeCr2Se4 and Fe0.5Cu0.5Cr2Se4

B. I. Min; Seung Su Baik; Hong Chul Choi; S K Kwon; J.-S. Kang

4f


Physical Review B | 2013

Observation of a kink during the formation of the Kondo resonance band in a heavy-fermion system

Hong Chul Choi; Kristjan Haule; Gabriel Kotliar; Ji Hoon Shim

state indicating the essentiality of including


Journal of Applied Physics | 2009

Electronic structures and magnetic properties of RB4(R=Yb,Pr,Gd,Tb,Dy)

Hong Chul Choi; Amel Laref; Ji Hoon Shim; S. K. Kwon; B. I. Min

f

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B. I. Min

Pohang University of Science and Technology

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Kyoo Kim

Pohang University of Science and Technology

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Beom Hyun Kim

Pohang University of Science and Technology

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Bongjae Kim

Pohang University of Science and Technology

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Ji Hoon Shim

Pohang University of Science and Technology

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Minjae Kim

Pohang University of Science and Technology

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J.-Y. Kim

Pohang University of Science and Technology

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S. K. Kwon

Pohang University of Science and Technology

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Chang-Jong Kang

Pohang University of Science and Technology

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J.-S. Kang

Catholic University of Korea

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