433 citations · 1.3k across the 33 of their papers we have counts for
33 papers
Broken Kramers' degeneracy in altermagnetic MnTe
Suyoung Lee, Sangjae Lee, Saegyeol Jung +9
Altermagnetism is a newly identified fundamental class of magnetism with vanishing net magnetization and time-reversal symmetry broken electronic structure. Probing the unusual ele…
Mn(PtPd)P: Isovalent Tuning of Mn Sublattice Magnetic Order
Tyler J. Slade, Ranuri S. Dissanayaka Mudiyanselage, Nao Furukawa +12
We report the growth and characterization of MnPdP, a ferromagnet with T 295 K, and conduct a substitutional study with its antiferromagnetic analogue MnPtP.…
Tunable electronic and magnetic phases in layered ruthenates: SrRuO3-SrTiO3 heterostructure upon strain
Minjae Kim, Chang-Jong Kang, Jae-Ho Han +2
Layered ruthenates are a unique class of systems which manifests a variety of electronic and magnetic features emerged from competing energy scales. At the heart of such features l…
Ferroelectricity driven by magnetism in quasi-one-dimensional Ba9Fe3Se15
Jun Zhang, Xiancheng Wang, Yiqing Hao +13
The spin-induced ferroelectricity in quasi-1D spin chain system is little known, which could be fundamentally different from those in three-dimensional (3D) system. Here, we report…
Competing spin-fluctuations in SrRuO and their tuning through epitaxial strain
Bongjae Kim, Minjae Kim, Chang-Jong Kang +2
In this study, we report the magnetic energy landscape of Sr2RuO4 employing the generalized Bloch approach within density functional theory. We identify the two dominant magnetic i…
Dynamical mean-field theory study of a ferromagnetic CrI3 monolayer
Chang-Jong Kang, Jeonghoon Hong, Jeongwoo Kim
We have employed one of the well-known many-body techniques, density functional theory plus dynamical mean-field theory (DFT + DMFT), to investigate the electronic structure of fer…
Theory-guided investigation on magnetic evolution of MnPtPdP and discovery of anti-CeCoIn-type ferromagnetic MnPdP
Ranuri S. Dissanayaka Mudiyanselage, Chang-Jong Kang, Kaya Wei +5
We report the magnetic changes from canted antiferromagnetic to ferromagnetic orderings in anti-115-type MnPtPdP ( = 1, 2, 2.5, 3, 4, and 5) and the discovery of a n…
Coexisting Kondo hybridization and itinerant f-electron ferromagnetism in UGe2
Ioannis Giannakis, Divyanshi Sar, Joel Friedman +6
Kondo hybridization in partially filled f-electron systems conveys significant amount of electronic states sharply near the Fermi energy leading to various instabilities from super…
An optical investigation of the heavy fermion normal state in superconducting UTe
Sirak M. Mekonen, Chang-Jong Kang, Dipanjan Chaudhuri +5
The recently discovered superconductor, UTe, has attracted immense scientific interest due to the experimental observations that suggest odd-parity superconductivity. It is bel…
Vacancy defect control of colossal thermopower in FeSb2
Qianheng Du, Lijun Wu, Huibo Cao +9
Iron diantimonide is a material with the highest known thermoelectric power. By combining scanning transmission electron microscope study with electronic transport neutron, X-ray s…
Ultrafast triggering of insulator-metal transition in two-dimensional VSe
Deepnarayan Biswas, Alfred J. H. Jones, Paulina Majchrzak +24
Assembling transition metal dichalcogenides (TMDCs) at the two-dimensional (2D) limit is a promising approach for tailoring emerging states of matter such as superconductivity or c…
Optical properties of the infinite-layer LaSrNiO and hidden Hund's physics
Chang-Jong Kang, Gabriel Kotliar
We investigate the optical properties of the normal state of the infinite-layer LaSrNiO using DFT+DMFT. We find a correlated metal which exhibits substantial transf…
Low energy band structure and symmetries of UTe2 from angle resolved photoemission spectroscopy
Lin Miao, Shouzheng Liu, Yishuai Xu +8
The compound UTe2 has recently been shown to realize spin triplet superconductivity from a non-magnetic normal state. This has sparked intense research activity, including theoreti…
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…
High temperature singlet-based magnetism from Hund's rule correlations
Lin Miao, Rourav Basak, Sheng Ran +17
Uranium compounds can manifest a wide range of fascinating many-body phenomena, and are often thought to be poised at a crossover between localized and itinerant regimes for 5f ele…
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…
Orbital-selective Kondo-lattice and enigmatic f-electrons emerging from inside the antiferromagnetic phase of a heavy fermion
Ioannis Giannakis, Justin Leshen, Mariam Kavai +11
Novel electronic phenomena frequently form in heavy fermions as a consequence of the mutual nature of localization and itineracy of f electrons. On the magnetically ordered side of…
Strong interband interaction in the excitonic insulator phase of TaNiSe
Jinwon Lee, Chang-Jong Kang, Man Jin Eom +3
Excitonic insulator (EI) was proposed in 60's as a distinct insulating state originating from pure electronic interaction, but its material realization has been elusive with extrem…
Material design of indium based compounds: possible candidates for charge, valence, and bond disproportionation and superconductivity
Chang-Jong Kang, Gabriel Kotliar
We design and investigate the physical properties of new indium compounds AInX (A = alkali metals, X = F or Cl). We find nine new In based materials in their ground state and…
Correlated materials design: prospects and challenges
Ran Adler, Chang-Jong Kang, Chuck-Hou Yee +1
The design of correlated materials challenges researchers to combine the maturing, high throughput framework of DFT-based materials design with the rapidly-developing first-princip…
Polaronic transport and thermoelectricity in FeCoSbS ( = 0, 0.1, and 0.2)
Yu Liu, Chang-Jong Kang, Eli Stavitski +4
We report a study of Co-doped berthierite FeCoSbS ( = 0, 0.1, and 0.2). The alloy series of FeCoSbS crystallize in an orthorhombic struct…
Study for material analogs of FeSb: material design for thermoelectric materials
Chang-Jong Kang, Gabriel Kotliar
Using the \emph{ab initio} evolutionary algorithm (implemented in USPEX) and electronic structure calculations we investigate the properties of a new thermoelectric material FeSbAs…
Temperature-dependent evolutions of excitonic superfluid plasma frequency in a srong excitonic insulator candidate, TaNiSe
Yu-Seong Seo, Man Jin Eom, Jun Sung Kim +3
We investigate an interesting anisotropic van der Waals material, TaNiSe, using optical spectroscopy. TaNiSe has been known as one of the few excitonic insu…
Phase stability and large in-plane resistivity in the 112-type iron-based superconductor CaLaFeAs
Chang-Jong Kang, Turan Birol, Gabriel Kotliar
The recently discovered high-T superconductor CaLaFeAs is a unique compound not only because of its low symmetry crystal structure, but also because of its…