Observation of hexagonally ordered flux quanta in YBa sub 2 Cu sub 3 O sub 7.
01 January 1987
The high resolution Bitter Pattern Technique has been used to reveal the magnetic structure of single crystal samples of the high T sub c superconductor YBa sub 2 Cu sub 3 O sub 7. The patterns appear to consist of hexagonally ordered, singly quantized vortices of flux hc/2e. That is, the structure is identical to those that would be observed in conventional type II superconductors under similar conditions.