Impact of fd Kondo cloud on superconductivity of nickelates

B Kang, H Kim, Q Zhu, CH Park - Cell Reports Physical Science, 2023 - cell.com
The discovery of superconducting nickelates reignited hope for elucidating the high-T c
superconductivity mechanism in isostructural cuprates. While the superconducting gap …

Crystallographic defects in Weyl semimetal LaAlGe

I Kim, B Kang, H Kim, M Choi - Physical Review Materials, 2024 - APS
Crystallographic defects in a topological semimetal can result in charge doping and
scattering centers which may mask the exotic spectroscopic and transport properties …

Infinite-layer nickelates as Ni-eg Hund's metals

B Kang, C Melnick, P Semon, S Ryee, MJ Han… - npj Quantum …, 2023 - nature.com
The recent and exciting discovery of superconductivity in the hole-doped infinite-layer
nickelate Nd1− δ Sr δ NiO2 draws strong attention to correlated quantum materials. From a …

Monoaxial Dzyaloshinskii-Moriya interaction–induced topological Hall effect in a new chiral-lattice magnet

YJ Sato, H Manako, R Okazaki, Y Yasui, A Nakamura… - Physical Review B, 2023 - APS
We investigate the topological Hall effect (THE) in the monoaxial chiral crystal GdPt 2 B, a
recently discovered compound that exhibits putative helimagnetism below 87 K. The distinct …

Dual nature of magnetism driven by momentum dependent f-d Kondo hybridization

B Kang, Y Lee, L Ke, H Kim, MH Kim… - Communications …, 2024 - nature.com
The intricate nature of magnetism in uranium-based Kondo lattices is a consequence of
correlations between U-5 f and conduction electrons. Previously, the source of magnetism …

Mott-Insulator State of FeSe as a Van der Waals 2D Material Is Unveiled

B Kang, M Kim, CH Park, A Janotti - Physical Review Letters, 2024 - APS
We undertook a comprehensive investigation of the electronic structure of FeSe, known as a
Hund metal, and found that it is not uniquely defined. Through accounting for all two-particle …

Spin reorientation and sign reversal of Berry curvature induced intrinsic anomalous Hall effect in the manganese pnictide MnSb

N Shahi, GK Shukla, V Kumar, S Singh - Physical Review B, 2024 - APS
The manipulation of the anomalous Hall effect (AHE) by controlling magnetization is of great
interest in condensed matter physics due to its potential application for the practical design …

Large Anomalous Hall Conductivity Derived from an -Electron Collinear Antiferromagnetic Structure

H Kotegawa, H Tanaka, Y Takeuchi, H Tou… - Physical Review Letters, 2024 - APS
Appropriate symmetry breaking generates an anomalous Hall (AH) effect, even in
antiferromagnetic (AFM) materials. Itinerant magnets with d electrons are typical examples …

Mott transition and abnormal instability of electronic structure in FeSe

B Kang, M Kim, CH Park, A Janotti - arXiv preprint arXiv:2310.15260, 2023 - arxiv.org
FeSe has been extensively investigated in the context of quantum matter, primarily due to its
achievement of the highest superconducting transition temperature among Fe-based …

Heavy fermion related behaviors and the effects from nonmagnetic atom vacancies in the -electron based antiferromagnet

X Ji, Q Liu, W Feng, Y Zhang, Q Chen, Y Liu, Q Hao… - Physical Review B, 2024 - APS
Recent studies on the electronic structures of the 5 f-electron based antiferromagnetic
compounds, ie, uranium dipnictides, have aroused widespread interest in the complex …