Phys. Rev. Lett. 66, 2826–2829 (1991)Model system for vortex motion in coupled two-dimensional type-II superconductorsReceived 11 March 1991; published in the issue dated 27 May 1991 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. © 1991 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.66.2826
DOI:
10.1103/PhysRevLett.66.2826
PACS:
74.60.Ge, 74.70.Jm, 74.70.Mq, 74.75.+t
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