Abstract
We have directly observed well-separated Josephson vortex splinters with unquantized magnetic flux at asymmetric 45° grain boundaries in YBa2Cu3O7-¿ films by imaging magnetic flux with scanning SQUID microscopy. The existence of these splinter vortices has been predicted and is well described by a model based on dx2-y2 pairing symmetry and facetting of the grain boundary on a length scale shorter than the Josephson penetration depth.
Original language | English |
---|---|
Article number | 067004 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 89 |
Issue number | 6 |
DOIs | |
Publication status | Published - 2002 |