52 citations · 176 across the 8 of their papers we have counts for
8 papers
Weyl Fermion with various chiralities in a f-electron ferromagnetic system: PrB4
Dong-Choon Ryu, Junwon Kim, Kyoo Kim +3
Rare-earth tetraborides (B) have attracted a lot of recent attention due to their intriguing electronic, magnetic, and topological properties. We have theoretically invest…
Temperature-dependent -electron evolution in CeCoIn via a comparative infrared study with LaCoIn
Myounghoon Lee, Yu-Seong Seo, Seulki Roh +6
We investigated CeCoIn and LaCoIn single crystals, which have the same HoCoGa-type tetragonal crystal structure, using infrared spectroscopy. However, while CeCoIn…
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…
Multiple topological Dirac cones in a mixed-valent Kondo semimetal: g-SmS
Chang-Jong Kang, Dong-Choon Ryu, Junwon Kim +5
We demonstrate theoretically that the golden phase of SmS (-SmS), a correlated mixed-valent system, exhibits nontrivial surface states with diverse topology. It turns out that t…
Topological Phase Transition in an Archetypal f-electron Correlated System: Ce
Junwon Kim, Dongchoon Ryu, Chang-Jong Kang +4
A typical f-electron Kondo lattice system Ce exhibits the well-known isostructural transition, the so-called gamma-alpha transition, accompanied by an enormous volume collapse. Mos…
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…