Spin Resonance and Magnetic Order in an Unconventional Superconductor.
| Autor: | Mazzone DG; Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland., Raymond S; Univ. Grenoble Alpes and CEA, INAC, MEM, F-38000 Grenoble, France., Gavilano JL; Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland., Steffens P; Institut Laue-Langevin, 38042 Grenoble, France., Schneidewind A; Jülich Center for Neutron Science JCNS, Forschungszentrum Jülich GmbH, Outstation at MLZ, D-85747 Garching, Germany., Lapertot G; Univ. Grenoble Alpes and CEA, INAC, PHELIQS, F-38000 Grenoble, France., Kenzelmann M; Laboratory for Scientific Developments and Novel Materials, Paul Scherrer Institut, 5232 Villigen PSI, Switzerland. |
|---|---|
| Jazyk: | angličtina |
| Zdroj: | Physical review letters [Phys Rev Lett] 2017 Nov 03; Vol. 119 (18), pp. 187002. Date of Electronic Publication: 2017 Nov 01. |
| DOI: | 10.1103/PhysRevLett.119.187002 |
| Abstrakt: | Unconventional superconductivity in many materials is believed to be mediated by magnetic fluctuations. It is an open question how magnetic order can emerge from a superconducting condensate and how it competes with the magnetic spin resonance in unconventional superconductors. Here we study a model d-wave superconductor that develops spin-density wave order, and find that the spin resonance is unaffected by the onset of static magnetic order. This result suggests a scenario, in which the resonance in Nd_{0.05}Ce_{0.95}CoIn_{5} is a longitudinal mode with fluctuating moments along the ordered magnetic moments. |
| Databáze: | MEDLINE |
| Externí odkaz: |
|