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260 papers · 1 filter
Spin-orbit coupling renormalization of the natural optical activity of Pb5Ge3O11 from first-principles
Asier Zabalo, Massimiliano Stengel, Eric Bousquet
We present a first-principles study of the natural optical activity of the gyroelectric PbGeO crystal, explicitly accounting for spin-orbit coupling (SOC) effects. W…
Extending Field Limits in Nanoscale Magnetic Imaging with Metamaterial-inspired Magnetic Flux Concentrators
A. Barrera, E. Fourneau, T. Pirottin +14
Many nanoscale magnetic imaging techniques are constrained by the maximum magnetic field that can be applied during measurements, due to geometrical limitations or interactions wit…
Origin of the Temperature-Induced Gap Bowing of Formamidinium-Methylammonium Lead Iodide Perovskites: Role of Cationic Rattlers
Kai Xu, Adrián Francisco-López, Bethan L. Charles +4
A thorough understanding of the temperature dependence of semiconductor band gaps is essential for optimizing optoelectronic devices. In this respect, the origin of the pronounced…
Thermal expansion of FeWO (Ferberite) and FeWO:FeWO (7:1): a comparative X-ray and neutron diffraction study
O. Fabelo, L. Cañadillas-Delgado, D. Vie +3
The thermal expansion of natural FeWO (ferberite) and synthetic FeWO:FeWO (7:1) was investigated over the 2-1123 K temperature range combining single-crystal and po…
Strain-Mediated Lattice Reconstruction Enhances Ferromagnetism in Cr2Ge2Te6/WTe2 van der Waals Heterobilayers
Franz Herling, Mireia Torres-Sala, Dorye L. Esteras +17
Van der Waals (vdW) heterostructures enable tailored electronic and magnetic phases by stacking atomically thin layers with pristine interfaces. Here, we investigate fully 2D Cr2Ge…
Comparative high-pressure study on rare-earth entropy fluorite-type oxides
Pablo Botellaa, David Vie, Leda Kolarek +6
We report a comparative high-pressure study of two fluorite-type rare-earth oxides with increasing configurational entropy, (CePr)O and (CePrLa)O. Synchrotron-based…