CeRu4Sn6: a strongly correlated material with nontrivial topology

M Sundermann, F Strigari, T Willers, H Winkler… - Scientific Reports, 2015 - nature.com
Topological insulators form a novel state of matter that provides new opportunities to create
unique quantum phenomena. While the materials used so far are based on semiconductors …

X-ray spectroscopic investigation of crystal fields in heavy fermions

DS Christovam, A Marino, J Falke, CE Liu, CF Chang… - Physical Review B, 2024 - APS
The higher dimensionality in the crystal fields of the Ce 2 M In 8 (M= Rh, Ir) compounds and
its interplay with hybridization and disorder are key ingredients to understand the complex …

Isoelectronic tuning of heavy fermion systems: Proposal to synthesize

JM Tomczak - Physical Review B, 2020 - APS
The study of (quantum) phase transitions in heavy fermion compounds relies on a detailed
understanding of the microscopic control parameters that induce them. While the influence …

Antiferromagnetic correlations in strongly valence fluctuating CeIrSn

Y Shimura, A Wörl, M Sundermann, S Tsuda… - Physical review …, 2021 - APS
CeIrSn with a quasikagome Ce lattice in the hexagonal basal plane is a strongly valence
fluctuating compound, as we confirm by hard x-ray photoelectron spectroscopy and inelastic …

Quantitative investigation of the occupation in the quasikagome Kondo lattice

M Sundermann, A Marino, A Gloskovskii, C Yang… - Physical Review B, 2021 - APS
CeRhSn with the Ce atoms forming a quasikagome lattice in the hexagonal plane has
recently been discussed in the context of quantum criticality driven by magnetic frustration …

Quantitative study of the f occupation in CeMIn5 and other cerium compounds with hard X-rays

M Sundermann, F Strigari, T Willers, J Weinen… - Journal of Electron …, 2016 - Elsevier
We present bulk-sensitive hard X-ray photoelectron spectroscopy (HAXPES) data of the
Ce3d core levels and lifetime-reduced L-edge X-ray absorption spectroscopy (XAS) in the …

Theoretical Investigation of Localized- and Itinerant Character of 4f Electron in Ce Intermetallics by Means of 3d-4f Resonant Inelastic X-ray Scattering

N Sasabe, T Uozumi - Journal of the Physical Society of Japan, 2023 - journals.jps.jp
In order to show characteristic features in core-level spectroscopy, reflecting the localized-or
itinerant nature of 4 f electrons in Ce intermetallics, 3 d x-ray photoemission spectroscopy, 3 …

Resonant photoemission spectroscopy of the ferromagnetic Kondo system CeAgSb2

CW Chuang, BT Chiogo, D Malterre… - Electronic …, 2021 - iopscience.iop.org
We study the electronic structure of single crystal CeAgSb 2, a low T c ferromagnetic Kondo
system, using synchrotron radiation photoemission spectroscopy (PES) and x-ray absorption …

Anisotropic dependence of the magnetic transition on uniaxial pressure in the Kondo semiconductors ( and Os)

K Hayashi, K Umeo, T Takeuchi, J Kawabata, Y Muro… - Physical Review B, 2017 - APS
We have measured the strain, magnetization, and specific heat of the antiferromagnetic
(AFM) Kondo semiconductors Ce T 2 A l 10 (T= Ru and Os) under uniaxial pressures …

Spectroscopy Studies on Antiferromagnetic Kondo Semiconductor: Anisotropy of the Hybridization in CeRu2Al10, (Ce0.9La0.1)Ru2Al10, and CeFe2Al10

H Yamaoka, H Tanida, EF Schwier, S Kumar… - Journal of the Physical …, 2024 - journals.jps.jp
Angle-resolved photoelectron spectroscopy studies were performed on antiferromagnetic
Kondo semiconductor CeRu2Al10 together with related (Ce0. 9La0. 1) Ru2Al10, and …