Vortex pinning in superlattices of ferromagnetic and nonmagnetic superconductors

S. Takahashi; M. Tachiki

doi:10.1103/PhysRevB.35.145

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Vortex pinning in superlattices of ferromagnetic and nonmagnetic superconductors

S. Takahashi, M. Tachiki

DOI 10.1103/PhysRevB.35.145 · Physical Review B

T1

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Abstract

Vortex pinning in superlattices composed of the layers of ferromagnetic and nonmagnetic superconductors is studied theoretically. The critical pinning-force density pc is calculated as a function of the flux density using the free energy of the mixed state in the superlattices. pc is greatly enhanced by the electromagnetic interaction between the vortex current and magnetic moments in the layers of ferromagnetic superconductor. The possibility of high supercurrent capacity in the superlattices is discussed.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
HoMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
ErRh4B4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
PbMo6S8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
LuRh4B4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown