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Novel phase modulation of magnetoresistance oscillations in Kondo/superconducting hybrid loops
Author(s) -
Eom Jonghwa,
Shin YunSok,
Lee HuJong
Publication year - 2004
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.200304517
Subject(s) - superconductivity , condensed matter physics , magnetoresistance , oscillation (cell signaling) , loop (graph theory) , physics , phase (matter) , modulation (music) , current (fluid) , materials science , chemistry , quantum mechanics , magnetic field , thermodynamics , mathematics , biochemistry , combinatorics , acoustics
Abstract Low 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)