Vortex dynamics in ferromagnetic superconductors: Vortex clusters, domain walls, and enhanced viscosity

Shi-Zeng Lin; Lev N. Bulaevskii; Cristian D. Batista

doi:10.1103/PhysRevB.86.180506

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Vortex dynamics in ferromagnetic superconductors: Vortex clusters, domain walls, and enhanced viscosity

Shi-Zeng Lin, Lev N. Bulaevskii, Cristian D. Batista

DOI 10.1103/PhysRevB.86.180506 · Physical Review B

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Abstract

We demonstrate that there is a long-range vortex-vortex attraction in ferromagnetic superconductors due to polarization of the magnetic moments. Vortex clusters are then stabilized in the ground state for low vortex densities. The motion of vortex clusters driven by the Lorentz force excites magnons. This regime becomes unstable at a threshold velocity above which domain walls are generated for slow relaxation of the magnetic moments and the vortex configuration becomes modulated. This dynamics of vortices and magnetic moments can be probed by transport measurements.

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Formula	Reported Tc (K)	Pressure (GPa)	Type
UGe2 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Sm1.85Ce0.15CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
ReBa2Cu3Ox Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown