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Title: Josephson magnetic rotary valve

We propose a control element for a Josephson spin valve. It is a complex Josephson device containing ferromagnetic (F) layer in the weak-link area consisting of two regions, representing 0 and π Josephson junctions, respectively. The valve's state is defined by mutual orientations of the F-layer magnetization vector and boundary line between 0 and π sections of the device. We consider possible implementation of the control element by introduction of a thin normal metal layer in a part of the device area. By means of theoretical simulations, we study properties of the valve's structure as well as its operation, revealing such advantages as simplicity of control, high characteristic frequency, and good legibility of the basic states.
Authors:
 [1] ;  [2] ;  [3] ;  [2] ;  [3] ;  [2] ;  [4] ; ;  [5] ;  [2] ;  [1] ;  [2] ;  [6] ;  [4]
  1. Skobeltsyn Institute of Nuclear Physics, Moscow State University, Moscow (Russian Federation)
  2. (Russian Federation)
  3. Physics Department, Moscow State University, Moscow (Russian Federation)
  4. (Netherlands)
  5. Institute of Solid State Physics, Russian Academy of Sciences, Chernogolovka (Russian Federation)
  6. Moscow Institute of Physics and Technology, State University, Dolgoprudniy, Moscow region (Russian Federation)
Publication Date:
OSTI Identifier:
22395543
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 105; Journal Issue: 24; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COMPUTERIZED SIMULATION; CONTROL; FERROMAGNETIC MATERIALS; FERROMAGNETISM; JOSEPHSON JUNCTIONS; LAYERS; MAGNETIZATION; METALS; OPERATION; ORIENTATION; SPIN; VALVES