Details

Autor(en) / Beteiligte

• REICHHARDT, C
• DROCCO, J
• OLSON REICHHARDT, C. J
• BISHOP, A. R

Titel

The effect of pinning on vortex states with attractive and repulsive interactions

Ist Teil von

• Physica. C, Superconductivity, 2012-09, Vol.479, p.15-18

Ort / Verlag

Amsterdam: Elsevier

Erscheinungsjahr

2012

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Recently there has been renewed interest in understanding vortex patterns in superconductors and Bose-Einstein condensates, where the repulsive vortex-vortex interactions have an additional intermediate or long range attractive component. These states can arise in low-[kappa] materials and may occur in multi-band superconductors. A combination of repulsive and attractive pairwise interactions can also occur in certain types of Bose-Einstein condensates and in magnetic superconductors. We show that when the pairwise interaction includes a long range attractive term, the ground state consists of a single vortex cluster. In the presence of pinning there is a well defined transition to a fragmented state as a function of pinning strength and density. We also demonstrate that in systems with intermediate range attraction and long range repulsion, ordered stripe and bubble phases occur.