67 citations · 694 across the 35 of their papers we have counts for
4 papers · 1 filter
Collective pinning of a frozen vortex liquid in ultrathin superconducting YBa_2Cu_3O_7 films
M. Calame, S. E. Korshunov, Ch. Leemann +1
The linear dynamic response of the two-dimensional (2D) vortex medium in ultrathin YBa_2Cu_3O_7 films was studied by measuring their ac sheet impedance Z over a broad range of freq…
Vortex ordering in fully-frustrated superconducting systems with dice lattice
S. E. Korshunov
The structure and the degenracy of the ground state of a fully-frustrated XY-model are investigated for the case of a dice lattice geometry. The results are applicable for the desc…
Low frequency response of a collectively pinned vortex manifold
S. E. Korshunov
A low frequency dynamic response of a vortex manifold in type-II superconductor can be associated with thermally activated tunneling of large portions of the manifold between pairs…
The fully frustrated XY model with next nearest neighbor interaction
G. Franzese, V. Cataudella, S. E. Korshunov +1
We introduce a fully frustrated XY model with nearest neighbor (nn) and next nearest neighbor (nnn) couplings which can be realized in Josephson junction arrays. We study the phase…