Publications by authors named "X Fabreges"
Article Synopsis
- 5d iridium oxides, like strontium iridate (Sr₂IrO₄), are being studied for potential new quantum states due to strong spin-orbit coupling and an unconventional Mott insulating state.
- Researchers used polarized neutron diffraction to measure the magnetization density in Sr₂IrO₄, revealing that its distribution is anisotropic and aspherical, differing from the expected j_{eff}=1/2 model.
- The study found that the magnetization density showed a dominant xy orbital contribution, suggesting that the relationship to superconducting copper oxides may not be as strong as previously believed.
The anisotropy of the magnetic properties of molecular magnets is a key descriptor in the search for improved magnets. Herein, it is shown how an analytical approach using single-crystal polarized neutron diffraction (PND) provides direct access to atomic magnetic susceptibility tensors. The technique was applied for the first time to two Dy-based single-molecule magnets and showed clear axial atomic susceptibility for both Dy ions.
View Article and Find Full Text PDFWe observed the coexistence of superconductivity and antiferromagnetic order in the single-crystalline ternary pnictide HoPdBi, a plausible topological semimetal. The compound orders antiferromagnetically at TN = 1.9 K and exhibits superconductivity below Tc = 0.
View Article and Find Full Text PDFWe have developed a pulsed magnet system with panoramic access for synchrotron x-ray diffraction in magnetic fields up to 31 T and at low temperature down to 1.5 K. The apparatus consists of a split-pair magnet, a liquid nitrogen bath to cool the pulsed coil, and a helium cryostat allowing sample temperatures from 1.
View Article and Find Full Text PDFTunnel diode oscillator measurements of the upper critical magnetic field of FeTe(0.5)Se(0.5).
J Phys Condens Matter
May 2014
Temperature dependence of the upper critical magnetic field (Hc2) of single crystalline FeTe0.5Se0.5(Tc = 14.
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