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Technical University of Denmark, Lyngby

Technical University of Denmark, Lyngby

Main Activity: 

Josephson junctions. Microwave detection. Flux dynamics in High Temperature superconductors. Numerical simulations. Power applications.

  • Description
    The current webpage of the Technical University doesn’t reflect the activities in superconductivity.  Therefore, we include below a brief characteristic of these activities.         
    • Numerical simulations of vortex (fluxon) movement 
      Many of the material properties of high temperature superconductors (HTS)  – in particular the fluxon behaviour relating to the case of an applied magnetic field – may be understood by accounting for anisotropy connected with the multilayer structure of superconducting Cu-O planes. These planes, separated by isolating or metallic layers, are common to all the HTS including the BSCCO, YBCO, Thallium and Mercury families.
      • The research has been focused on understanding the phenomenon of phase-locking of Josephson fluxons parallel to the plane of the multi-layers. This is done by numerical simulations of the extremely non-linear coupled sine – Gordon equations connected with the multi-layer structure of the system.
      • The research has been focused on the properties of the BSCCO stack in high magnetic fields, the so-called flux flow mode.  In close communication with three experimental Japanese groups and a German group, a new model and a new interpretation of fluxon lattices has been proposed. This has an important impact on the development of BSCCO stacks as high frequency (Terahertz) generators of electromagnetic waves. It is expected that the layered structure may lead to electronic applications.
      • Energy / power related issues: 
        Application of superconducting technology to windmills has been studies.  Superconducting generators to be mounted in the top of windmills could be much smaller and lighter than conventional ones, and thus the present practical limit of about 5 MW could be increased significanlly by using superconducting technology.            
    • Equipment: 
      High voltage equipment used for example in connection with the development and testing of superconducting cables.

Niels Falsig Pedersen
Position or Affiliation: 

Elektro-DTU, Technical University of Denmark
ELTEK, build 326, DK-2800 Lyngby, Denmark

+45 45253800
+45 45253297
+45 45886111
Jesper Mygind

Department of Physics, B309
Technical University of Denmark
Anker Engelunds Vej 1
DK-2800 Lyngby

+45 4525 3268
+45 4593 1669
Category 1.0 - Physics of Superconductivity
Category 4.0 - Superconducting Electronics (small-scale applications)
Category 5.0 - Conductors and Cables
Category 6.0 - Large Scale Applications of Superconductivity
Class 1 - Education and Research (University)
Last modified: 
Friday, February 13, 2015 - 10:33