Frontiers in Superconductors without Inversion Symmetry
A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Materials Science and Engineering".
Deadline for manuscript submissions: closed (10 November 2021) | Viewed by 289
Special Issue Editor
2. Research Department "Research with Neutrons and Muons (NUM)", Paul Scherrer Institut, 5232 Villigen, Switzerland
3. Institut für Physik (Experimentalphysik), University of Zurich, Rämistrasse 71, 8006 Zürich, Switzerland
Interests: unconventional superconductor; non-centrosymmetric superconductor; topological magnetic materials; topological hall effect; Muon-spin rotation and relaxation
Special Issue Information
Dear Colleagues,
The combination of intriguing fundamental physics with far-reaching potential applications has made unconventional superconductors one of the most studied classes of materials. Standing out among them are the noncentrosymmetric superconductors (NCSCs), whose crystal structures lack an inversion symmetry. As a consequence, in NCSCs, the strict symmetry-imposed requirements are relaxed, allowing mixtures of spin-singlet and spin-triplet copper pairing channels, thus setting the scene for a variety of exotic properties. The degree of mixing in such combined pairings is related to the strength of the antisymmetric spin-orbit coupling (ASOC) and other microscopic parameters, still under investigation. NCSCs’ ability to host unconventional- and topological superconductivity, as well as to act as systems to realize the Majorana fermions, have made them one of the most investigated families in recent times. Interestingly, time-reversal symmetry (TRS) breaking has been observed below Tc in certain weakly-correlated NCSCs using mostly muon-spin relaxation techniques. However, the causes behind TRS breaking in these superconductors are not yet fully understood and remain an intriguing open question. This Special Issue will collect new experimental and theoretical results, as well as overviews, generalizations, and analyses of the known facts, facilitating a deeper understanding of NCSCs from a wide perspective.
Prof. Dr. Tian Shang
Guest Editor
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Keywords
- noncentrosymmetric superconductors
- unconventional superconductivity
- topological superconductivity
- spin-orbit coupling
- time-reversal symmetry breaking
