22 citations · 91 across the 11 of their papers we have counts for
11 papers
High-resolution valence band RIXS at the actinide M-edges
Martin Sundermann, Henrik Hahn, Denise S. Christovam +6
Understanding the electronic structure of actinide materials is crucial for both fundamental research and nuclear applications. The partially filled 5f shells exhibit complex behav…
UTe: a narrow band superconductor
Martin Sundermann, Takaki Okauchi, Naoki Ito +10
We investigate the nature of the 5 electrons in the unconventional odd-parity superconductor UTe, focusing on the degree of covalency, localization versus itinerancy, and do…
Quantifying the U covalence and degree of localization in U intermetallics
Andrea Marino, Denise S. Christovam, Daisuke Takegami +17
A procedure for quantifying the U electrons' covalence and degree of localization in U intermetallic compounds is presented. To this end, bulk sensitive hard and soft x-ray ph…
Stabilization of U 5 configuration in UTe through U 6d dimers in the presence of Te2 chains
Denise S. Christovam, Martin Sundermann, Andrea Marino +16
We investigate the topological superconductor candidate UTe using high-resolution valence-band resonant inelastic x-ray scattering at the U -edges. We observe atomic-l…
Linear dichroic x-ray absorption response of Ti-Ti dimers along the axis in TiO upon Mg substitution
M. Okawa, D. Takegami, D. S. Christovam +9
Corundum oxide TiO shows the metal-insulator transition around 400-600 K accompanying the nearest Ti-Ti bond ( singlet state) formation along th…
Fe substitution in URuSi: singlet magnetism in an extended Doniach phase diagram
Andrea Marino, Denise S. Christovam, Chun-Fu Chang +13
The application of pressure as well as the successive substitution of Ru with Fe in the hidden order (HO) compound URuSi leads to the formation of the large moment antiferr…
Spectroscopic evidence of Kondo-induced quasi-quartet in CeRhAs
Denise S. Christovam, Miguel Ferreira-Carvalho, Andrea Marino +13
CeRhAs is a new multiphase superconductor with strong suggestions for an additional itinerant multipolar ordered phase. The modeling of the low temperature properties of th…
Singlet magnetism in intermetallic UGa unveiled by inelastic x-ray scattering
Andrea Marino, Martin Sundermann, Denise S. Christovam +12
Using high resolution tender-x-ray resonant inelastic scattering and hard-x-ray non-resonant inelastic scattering beyond the dipole limit we were able to detect electronic excitati…
Orbital localization and the role of the Fe and As orbitals in BaFeAs probed by XANES
A. G. de Figueiredo, M. R. Cantarino, W. R. da Silva Neto +9
The polarization dependence of the near edge x-ray absorption spectroscopy (XANES) is an element specific probe to the real-space distribution of the density of unoccupied states i…
Tuning the crystalline electric field and magnetic anisotropy along the CeCuBiSb series
G. S. Freitas, M. M. Piva, R. Grossi +8
We have performed X-ray powder diffraction, magnetization, electrical resistivity, heat capacity and inelastic neutron scattering (INS) to investigate the physical properties of th…
Electronic and magnetic properties of stoichiometric CeAuBi
M. M. Piva, R. Tartaglia, G. S. Freitas +13
We report the electronic and magnetic properties of stoichiometric CeAuBi single crystals. At ambient pressure, CeAuBi orders antiferromagnetically below a Néel tempera…