A5065425952- Physics of Superconductivity and Magnetism
- Advanced Condensed Matter Physics
- Quantum and electron transport phenomena
- 2D Materials and Applications
- Superconducting and THz Device Technology
- Superconductivity in MgB2 and Alloys
- Molecular Junctions and Nanostructures
- Semiconductor materials and interfaces
- Spectroscopy and Laser Applications
- Atomic and Subatomic Physics Research
University of Konstanz
2021-2025
The coupling of a superconductor (SC) to different material often results in system with unconventional superconducting properties. A conventional SC is perfect diamagnet expelling magnetic fields out its volume, phenomenon known as the Meissner effect. Here, we show that simple adsorption monolayer chiral molecules (ChMs), which are nonmagnetic solution, onto surface can markedly change diamagnetic response. By measuring internal field profile Nb thin films under an applied transverse by...
A superconductor, NbReN, in thin film form is synthesized. Here, the deposition parameters and electrical transport characterization of NbReN films grown by reactive dc sputtering using a NbRe target are reported. The conditions systematically varied to optimize superconducting properties resulting samples. Films with polycrystalline structure well established ordering obtained. results studied interpreted framework different theoretical models. From analysis estimated microscopical...
The combination of a superconductor with magnetically inhomogeneous material has been established as an efficient mechanism for the generation long-ranged spin-polarized (spin-triplet) Cooper pairs. Evidence this mechanism, however, demonstrated based on studies done thin-film multilayers, where strong bonds existing at interface between and magnetic should in principle enhance proximity effects strengthen any electronic correlations. Here, we fabricate devices van der Waals (vdW) stacks...
The study of the flux-flow instability in superconducting materials has recently gained renewed attention due to its potential implications for use analyzed as micrometer-sized detectors single photons. values quasiparticle relaxation time (τE) measured these are affected by pinning properties. Here, we report electric transport properties NbReN microstrips different quality. For strip characterized high resistivity, and large critical currents pinning, estimate a value τE that is almost two...
The combination of a superconductor with magnetically inhomogeneous material has been established as an efficient mechanism for the generation long-ranged spin-polarized (spin-triplet) Cooper pairs. Evidence this mechanism, however, based on studies done three-dimensional systems, where strong bonds existing at interface between and magnetic should in principle enhance proximity effects strengthen any electronic correlations. Here, we fabricate devices van der Waals stacks flakes...