Abstract
Measurements are reported on the superconducting properties of V/Fe superlatitices showing the interplay between ferromagnetism and superconductivity. When the V layer thickness is on the order of the BCS coherence length and the Fe layer is only a few atomic planes thick, a 2D–3D crossover is observed in the temperature dependence of the parallel upper critical field Hc2‖. This implies the coexistence of superconductivity and ferromagnetism in the Fe layers. Three-dimensional behavior for thinner Fe layers is observed (∼1 atomic plane) and 2D behavior for thicker Fe layers (>10 atomic planes).
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On leave from the Institute of Physics, Academia Sinica, Beijing, China.
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Wong, H.K., Jin, B.Y., Yang, H.Q. et al. Superconducting properties of V/Fe superlattices. J Low Temp Phys 63, 307–315 (1986). https://doi.org/10.1007/BF00683770
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DOI: https://doi.org/10.1007/BF00683770