Abstract
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 language | English |
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Pages (from-to) | 1367-1368 |
Number of pages | 2 |
Journal | Physica B: Condensed Matter |
Volume | 329-333 |
Issue number | II |
DOIs | |
Publication status | Published - May 2003 |
Externally published | Yes |
Keywords
- Irreversibility line
- Multilayer
- Vortex matter
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering