| Autor: |
Cameron, A. S., Yerin, Y. S., Tymoshenko, Y. V., Portnichenko, P. Y., Sukhanov, A. S., Hatnean, M. Ciomaga, Paul, D. McK., Balakrishnan, G., Cubitt, R., Inosov, D. S. |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 100, 024518 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.100.024518 |
| Popis: |
We observe a hysteretic reorientation of the magnetic vortex lattice in the noncentrosymmetric superconductor Ru7B3, with the change in orientation driven by altering magnetic field below Tc. Normally a vortex lattice chooses either a single or degenerate set of orientations with respect to a crystal lattice at any given field or temperature, a behavior well described by prevailing phenomenological and microscopic theories. Here, in the absence of any typical VL structural transition, we observe a continuous rotation of the vortex lattice which exhibits a pronounced hysteresis and is driven by a change in magnetic field. We propose that this rotation is related to the spontaneous magnetic fields present in the superconducting phase, which are evidenced by the observation of time-reversal symmetry breaking, and the physics of broken inversion symmetry. Finally, we develop a model from the Ginzburg-Landau approach which shows that the coupling of these to the vortex lattice orientation can result in the rotation we observe. |
| Databáze: |
arXiv |
| Externí odkaz: |
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