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  1. 1 Open Physics

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  1. 1 2012

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  1. 1 Hirata K.

  2. 1 Mochiku T.

  3. 1 Ooi S.

  4. 1 Thakur A.

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Vortices in superconducting nano-networks with anti-dots array

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Hirata K., Thakur A., Ooi S., Mochiku T.
Open Physics
|
2012
|
vol. 10
|
issue 3
576-581
EN
Vortices (magnetic flux quanta) in the superconducting networks perforated with anti-dots (holes) arrays behave as electrons in atomic lattice of crystals. Repulsive and attractive interaction among vortices and anti-dots resemble to those among electrons and atoms in crystals. To confirm the variety of the vortex physics similar to the solid state physics, we have fabricated such superconducting networks with antidots array in metallic, inter-metallic and high-T c superconductors (HTSCs), and have measured magneto-resistance of vortex-flow. In these materials, we have observed integer-matching at the matching fields and fractional-matching effect between them. Most of them are well explained by commensurability between Abrikosov vortex lattice and anti-dots array. Furthermore, the effect of the anti-dots array in HTSCs appears as another kind of phase transitions instead of to the first-order melting transition of vortex lattice in pristine samples.
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