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Title: ac effect in the conductance of mesoscopic normal-metal{endash}superconductor structures

Journal Article · · Physical Review, B: Condensed Matter
;  [1]
  1. NTT Basic Research Laboratories, 3-1 Morinosato-Wakamiya, Atsugi-Shi, Kanagawa 243-01 (Japan)

Resonant peaks in the {ital resistance} of a mesoscopic normal-metal wire in contact with two superconductors under rf irradiation are detected. The peaks occur when a potential difference V{sub S}={h_bar}{omega}/2e is applied between the superconductors. The peaks can be interpreted as an ac phase-coherent phenomenon in the conductance of mesoscopic normal-metal{endash}superconductor structures. This effect is observed although the critical Josephson current is negligibly small and the Shapiro steps are absent. {copyright} {ital 1997} {ital The American Physical Society}

OSTI ID:
633987
Journal Information:
Physical Review, B: Condensed Matter, Vol. 56, Issue 14; Other Information: PBD: Oct 1997
Country of Publication:
United States
Language:
English