Vortex matter in NbN/AlN superconducting multilayers

El Hadi Sadki, Zoe Barber, Stephen Lloyd, Mark Blamire, Archie Campbell

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The vortex matter (VM) in NbN/AlN multilayers (ML) is investigated by transport measurements in fields applied parallel and perpendicular to the layers. Similarly to HTS, the irreversibility line (IL) shifts to lower temperatures with increasing anisotropy. The resistivity of the higher anisotropy ML scales with the normal component of the field, suggesting the presence of a 2D VM above the IL. The activation energy of the less anisotropic sample scales with the number of the superconducting layers, in agreement with 3D VM. The resistivity and IV characteristic are compared with the Bose-glass theory.

Original languageEnglish
Pages (from-to)1367-1368
Number of pages2
JournalPhysica B: Condensed Matter
Issue numberII
Publication statusPublished - May 2003
Externally publishedYes


  • Irreversibility line
  • Multilayer
  • Vortex matter

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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