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Updated: Aug 3, 2026

Radio Frequency Magnetron Sputtering of GdBa2Cu3O7−δ/ La0.67Sr0.33MnO3 Quasi-bilayer Films on SrTiO3 (STO) Single-crystal Substrates
Published on: April 12, 2019
Experimental evidence for the vortex glass phase in untwinned, proton irradiated YBa2Cu3O7-delta
A M Petrean1, L M Paulius, W K Kwok
1Department of Physics, Western Michigan University, Kalamazoo, Michigan 49008 and and Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA.
Abstract:
We report on magnetoresistance measurements of the effects of 9 MeV proton irradiation on a clean, untwinned single crystal of YBa2Cu3O7-delta. For the first time, evidence for a vortex glass transition is detected in an untwinned single crystal of YBa2Cu3O7-delta with induced pointlike disorder, in which the first order vortex melting transition is completely suppressed after proton irradiation. Our results suggest that a sufficiently high pinning disorder is required in order for the vortex glass phase to be observed.
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