Stray-Field-Driven Switchable Superconducting Devices

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概要

• 論文の詳細を見る

• In a simple bilayer device consisting of a superconducting Pb–Au–In alloy and a thin ferromagnetic film, a locally strong stray field from the ferromagnetic film gives rise to a localized normal state in the underlying superconducting microbridge. Extension of the local normal state depends on the stray field on top of the superconducting microbridge, which depends on the magnetization direction of the ferromagnetic film. By use of write-wire current pulses, we manipulated the magnetization direction, and consequently demonstrated toggling between high and low voltage states for a current-biased device. Using magnetic force microscopy, we have also characterized the domain configurations of a ferromagnetic film in the high and low voltage states.

• Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
• 2003-08-15

著者

• Johnson Mark

  Naval Research Laboratory

• Eom Jonghwa

  Department of Physics and Institute of Fundamental Physics, Sejong University, Seoul 143-747, Korea

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