Abstract

AbstractLow temperature transport measurements have been performed for Kondo AuFe/superconducting hybrid loops. For both 26‐ppm‐AuFe/Al loop and 70‐ppm‐AuFe/Al loop, magnetoresistance shows Aharonov‐Bohm type oscillation with a period corresponding to the superconducting flux quantum. The phase of the oscillations can be modulated by applying dc bias current through the samples. However, phase shift by the dc current is so effective that only 26‐μA‐current can induce 2π change. (© 2004 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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