High-symmetry DC SQUID based on the Nb/AlO x /Nb Josephson junctions for nondestructive evaluation

  • E. A. KostyurinaEmail author
  • K. V. Kalashnikov
  • L. V. Filippenko
  • O. S. Kiselev
  • V. P. Koshelets
Novel Radio Systems and Elements


Topology of high-symmetry thin-film SQUIDs based on the Nb/AlO x /Nb tunneling junctions is developed and optimized. The devices exhibit relatively low sensitivity to static external field and electric interference. An experimentally implemented SQUID sensor with an integrated input coil with a sensitivity of 0.26 μA/Ф0 exhibits an intrinsic noise with respect to magnetic flux of less than \(5\mu {\Phi _0}/\sqrt {Hz} \). A system for encapsulation of sensors is developed for applications in multichannel systems for nondestructive evaluation of materials and alternative diagnostic systems.


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Copyright information

© Pleiades Publishing, Inc. 2017

Authors and Affiliations

  • E. A. Kostyurina
    • 1
    • 2
    Email author
  • K. V. Kalashnikov
    • 1
    • 2
  • L. V. Filippenko
    • 1
  • O. S. Kiselev
    • 1
  • V. P. Koshelets
    • 1
  1. 1.Kotel’nikov Institute of Radio Engineering and ElectronicsRussian Academy of SciencesMoscowRussia
  2. 2.Moscow Institute of Physics and Technology (State University)Dolgoprudnyi, Moscow oblastRussia

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