JCNS Workshop 2025, Trends and Perspectives in Neutron Scattering. Quantum Materials: Theory and Experiments

In many cases it is difficult to distinguish between anisotropic and multi-band superconductivity. Using the transition metal dichalcogenide superconductors as a starting point, we experimentally confirm the Thiemann-Kogan model for uniaxial anisotropic superconductors through measurements of the vortex lattice in transition metal dichalcogenide superconductors. We then use this information...

The origin of the enigmatic pseudogap phase of high-Tc superconducting cuprates remains an unsolved mystery. Over the last decades, polarized neutron diffraction (PND) revealed that the pseudogap state hosts an intra-unit cell (or q=0) magnetism preserving the lattice translational (LT) symmetry and breaking the time-reversal and parity symmetries [1]. This q=0 magnetism is interpreted in...

Layered nickelates, particularly La3Ni2O7 and its derivatives, have emerged as a compelling platform for exploring unconventional superconductivity [1, 2]. These materials exhibit high-temperature superconductivity under pressure, placing them among the few transition-metal oxides with such properties alongside cuprates and iron-based superconductors. The intricate interplay of spin density...

The search for new high-temperature (high-Tc) superconductors beyond the copper-based paradigm offers exciting opportunities to deepen our understanding of superconductivity mechanisms and explore new applications [1]. Nickel, situated immediately to the left of copper on the Periodic Table, offers a playground for materials and chemistry designs aimed at replicating high-Tc unconventional...