2008/03/10 by Jian Wei, Paul Cadden-Zimansky, Venkat Chandrasekhar +1 · 1 citation
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum, superfluid, helium dynamics #cond-mat.mes-hall #cond-mat.supr-con
paper · pdf · doi:10.1063/1.2894515
published as Appl. Phys. Lett. v92, 102502(2008), also selected for the March 15, 2008 issue of Virtual Journal of Applications of Superconductivity and the March 24, 2008 issue of Virtual Journal of Nanoscale Science & Technology · One pdf file, 4 pages, 4 figure. For figure 1, a smaller file is uploaded
openalex publication_date 2008/03/10 · arxiv created 2008/03/21 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We have measured the magnetoresistance of a dc superconducting quantum interference device in the form of an interrupted mesoscopic normal metal loop in contact with two superconducting electrodes. Below the transition temperature of the superconducting electrodes, large h∕2e periodic magnetoresistance oscillations are observed. By adding a small dc bias to the ac measurement current, h∕4e oscillations can be produced. Lowering the temperature further leads to even larger oscillations, and eventually to sharp switching from the superconducting state to the normal state. This flux-dependent resistance could be utilized to make a highly sensitive flux detector.