activity
20142025
most citedDual nature of 5 electrons in the isostructural UMSi family: from antiferro- to Pauli paramagnetism via hidden order

41 citations · 136 across the 11 of their papers we have counts for

collaborators

11 papers

cond-mat.str-el2025★ 5 cited

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…

cond-mat.str-el2024★ 9 cited

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…

cond-mat.str-el2024

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…

cond-mat.str-el2023★ 5 cited

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…

cond-mat.str-el2023★ 22 cited

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…

cond-mat.str-el2023★ 17 cited

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…

cond-mat.str-el2022★ 15 cited

Orbital selective coupling in CeRhB: co-existence of high Curie and high Kondo temperature

Andrea Amorese, Philipp Hansmann, Andrea Marino +12

We investigated the electronic structure of the enigmatic CeRhB using resonant inelastic scattering and x-ray absorption spectroscopy in combination with dens…

cond-mat.str-el2022★ 4 cited

Quantitative investigation of the 4 occupation in the quasikagome Kondo lattice CeRhPdSn

Martin Sundermann, Andrea Marino, Andrei Gloskovskii +4

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. Furt…

cond-mat.str-el2020★ 18 cited

Possible multi-orbital ground state in CeCuSi

Andrea Amorese, Andrea Marino, Martin Sundermann +16

The crystal-field ground state wave function of CeCuSi has been investigated with linear polarized -edge x-ray absorption spectroscopy from 250mK to 250K, thus covering…

cond-mat.str-el2020★ 41 cited

Dual nature of 5 electrons in the isostructural UMSi family: from antiferro- to Pauli paramagnetism via hidden order

Andrea Amorese, Martin Sundermann, Brett Leedahl +16

Using inelastic x-ray scattering beyond the dipole limit and hard x-ray photoelectron spectroscopy we establish the dual nature of the U electrons in UMSi (M = Pd, Ni,…

math.NT2014

Sums of Multivariate Polynomials in Finite Subgroups

Paolo Leonetti, Andrea Marino

Let be a commutative ring, a multivariate polynomial, and a finite subgroup of the group of units of satisfying a certain constraint, which al…