Vortices in superconducting nano-networks with anti-dots array

• Authors: Kazuto Hirata , Ajay Thakur , Shuuichi Ooi , Takashi Mochiku
• Languages of publication: EN

Abstracts

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.

Keywords

EN

superconductors; vortex; matching effect

• Publisher: De Gruyter Open
• Journal: Open Physics
• Year: 2012
• Volume: 10
• Issue: 3
• Pages: 576-581

Dates

published

1 - 6 - 2012

online

17 - 6 - 2012

Contributors

author

Kazuto Hirata

• National Institute for Materials Science, Sengen 1-2-1, 305-0047, Tsukuba, Japan

author

Ajay Thakur

• National Institute for Materials Science, Sengen 1-2-1, 305-0047, Tsukuba, Japan

author

Shuuichi Ooi

• National Institute for Materials Science, Sengen 1-2-1, 305-0047, Tsukuba, Japan

author

Takashi Mochiku

• National Institute for Materials Science, Sengen 1-2-1, 305-0047, Tsukuba, Japan

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Identifiers

DOI

10.2478/s11534-012-0041-z