Model system for vortex motion in coupled two-dimensional type-II superconductors

W. R. White; A. Kapitulnik; M. R. Beasley

doi:10.1103/PhysRevLett.66.2826

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Model system for vortex motion in coupled two-dimensional type-II superconductors

W. R. White, A. Kapitulnik, M. R. Beasley

DOI 10.1103/PhysRevLett.66.2826 · Physical Review Letters

T1

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Abstract

We report linear electrical transport measurements in Mo77Ge23/Ge multilayres and a single layer of Mo77Ge23 which is nominally the same as the constituent layers of each multilayer. In the multilayers, we observe a crossover from a regime where the vortex motion displays interlayer coupling to a regime where the vortex segments in each layer move effectively independent. Our observations bear some strong resemblances to those in high-temperature superconductors, and we discuss the possible relevance to our system of some concepts developed to interpret the high-temperature superconductors.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Mo77Ge23 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.44	Pressure not reported	onset
Mo77Ge23 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.3	Pressure not reported	onset
Mo77Ge23 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	5.08	Pressure not reported	onset