Conveners
Superconductors
- Frank Weber (Karlsruhe Institute of Technology)
- Jitae Park (MLZ, TUM)
We report high-resolution neutron spectroscopy on the archetypal heavy fermion material CeIn3 that exhibits an antiferromagnetic (AFM) order below TN= 10.1 K. Increasing pressure suppresses the AFM state to zero temperature resulting in a quantum critical point, the critical fluctuations of which are believed to mediate unconventional superconductivity. Previous neutron results with moderate...
The coupling of spin, charge and lattice degrees of freedom results in the emergence of novel states of matter across many classes of strongly correlated electron materials, ranging from unconventional superconductivity to skyrmions, multiferroicity, materials with a giant magnetoresistance, or hidden order states. Although, the importance of coupled degrees of freedom is widely appreciated,...
This study aims to investigate the changes in superconducting current flow induced by a trapped magnetic field. This is done by using polarized neutrons to image both the trapped magnetic field and the screening field induced by the current flow.
The experiment was conducted at the J-PARC RADEN facility on a multifilamentary YBCO superconductor [1] with a 1T field applied along the current...
In the last years, superconductivity has been observed in a couple of iron based one dimensional compounds, BaFe$_3$X$_3$ X=S,Se. Indeed, for both compounds, a pressure induced superconducting dome develops above 10 GPa and below 14 K. A significant difference between the two systems is their magnetic ground state at low pressure. The magnetic order of BaFe$_3$Se$_3$ takes the form of...
