Unraveling the origin of Kondo-like behavior in the 3d-electron heavy-fermion compound YFe2Ge2

B Xu, R Liu, H Wo, Z Liao, S Yi, C Li, J Zhao… - Proceedings of the …, 2024 - pnas.org
The heavy fermion (HF) state of d-electron systems is of great current interest since it
exhibits various exotic phases and phenomena that are reminiscent of the Kondo effect in f …

Emergence of flat bands and ferromagnetic fluctuations via orbital-selective electron correlations in Mn-based kagome metal

S Samanta, H Park, C Lee, S Jeon, H Cui… - Nature …, 2024 - nature.com
Kagome lattice has been actively studied for the possible realization of frustration-induced
two-dimensional flat bands and a number of correlation-induced phases. Currently, the …

Interplay between strongly localized Eu and weakly localized Nb electrons in

R Nakamura, D Takegami, A Melendez-Sans, LH Tjeng… - Physical Review B, 2024 - APS
We investigated the electronic structure of BaEu 2 Nb 5 O 15 and Eu 3 Nb 5 O 15 by means
of hard x-ray photoelectron spectroscopy. The Eu 3 d core level spectra are primarily …

Interorbital antisymmetric hopping generated flat bands on kagome and pyrochlore Lattices

K Zeng, Z Wang - npj Quantum Materials, 2024 - nature.com
Flat bands are intriguing platforms for correlated and topological physics. Various methods
have been developed to create flat bands utilizing lattice geometry, but the investigation of …

Metallic Surface State in the Bulk Insulating Phase of Ca2−xSrxRuO4 (x = 0.06) Studied by Photoemission Spectroscopy

D Ootsuki, A Hishikawa, T Ishida, D Shibata… - Journal of the Physical …, 2022 - journals.jps.jp
We report the electronic structure of Ca2− x Sr x RuO4 (CSRO) for x= 0.06 by means of
angle-resolved photoemission spectroscopy (ARPES) and hard x-ray photoemission …

Tuning the electronic and magnetic states of with proton evolution

D Tian, L Miao, L Si, NJ Schreiber, S Shen, J Zhang… - Physical Review …, 2024 - APS
With strong correlations between lattice, spin, and charge degrees of freedom, the layered
ruthenate C a 2 Ru O 4 has attracted considerable interest over the past few decades due to …

Tunable electronic and magnetic phases in layered ruthenates: Strained heterostructures

M Kim, CJ Kang, JH Han, K Kim, B Kim - Physical Review B, 2022 - APS
Layered ruthenates are a unique class of systems which manifest a variety of electronic and
magnetic features from competing energy scales. At the heart of such features lies multi …

Universality of charge doping driven metal-insulator transition in and role of spin-orbit coupling

J Kwon, S Soltani, C Polley, J Jung, M Kim, D Kim… - Physical Review B, 2022 - APS
We performed angle-resolved photoemission spectroscopy (ARPES) experiments on an
electron-doped Sr 2 RhO 4 system Sr 2− x Ce x RhO 4 in order to investigate the electron …

Signatures of orbital selective Mott state in doped

B Debnath, A Das, P Adhikary, S Mukherjee - Physical Review Materials, 2023 - APS
Bilayer Strontium Ruthenate Sr 3 Ru 2 O 7 is a strongly correlated electronic system that
shows diverse electronic and structural phases. Upon doping with Mn, an orbital selective …