Observation of hexatic liquid vortex matter in YBa2Cu3O7
Hauglin, Harald · Woodard, Nathan G. · Lafyatis, Gregory P.
Original · EN
An atomic beam probe is used to study the structure and dynamics of quantized supercurrent vortex lines in YBa₂Cu₃O₇₋? at temperatures up to within 0.7 K below TC. Here we report the direct observation of a vortex configuration with sample wide bond-orientational order but only short range translational correlation. The data imply the existence of an intermediate `hexatic' vortex line liquid phase. We find that the hexatic liquid is in thermal equilibrium over a narrow temperature range below TC and is quenched into an immobile hexatic glass at low temperatures.
English translation
This paper has no Arabic translation yet. Be the first: it takes a few seconds, and the result is stored for every future reader.