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Petra Iii on Muck Rack

Petra Iii

As seen in: Physical Review B
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Articles

Stabilization of U $5{f}^{2}$ configuration in ${\mathrm{UTe}}_{2}$ through U $6d$ dimers in the presence of Te2 chains

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By Denise S. Christovam, Martin Sundermann, Petra Iii, Deutsches Elektronen-Synchrotron DESY
| Physical Review B
We investigate the topological superconductor candidate using high-resolution valence-band resonant inelastic x-ray scattering at the U  edges. We observe atomiclike low-energy excitations that support the correlated nature of this unconventional superconductor. These excitations originate from the U  configuration, which is unexpected since the short Te2-Te2 distances exclude Te2 being .
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Singlet magnetism in intermetallic ${\mathrm{UGa}}_{2}$ unveiled by inelastic x-ray scattering

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By Andrea Marino, Martin Sundermann, Deutsches Elektronen-Synchrotron DESY, Petra Iii
| Physical Review B
Abstract Using high resolution tender x-ray resonant inelastic scattering and hard x-ray nonresonant inelastic scattering beyond the dipole limit we were able to detect electronic excitations in intermetallic UGa2 that are highly atomic in nature. Analysis of the spectral lineshape reveals that the local 5f2 configuration characterizes the correlated nature of this ferromagnet.
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