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Experimental evidence for the vortex glass phase in untwinned, proton irradiated Yba{sub 2}Cu{sub 3}O{sub 7-8}.

Journal Article · · Phys. Rev. Lett.

We report on magnetoresistance measurements of the effects of 9 MeV proton irradiation on a clean, untwinned single crystal of YBa{sub 2}Cu{sub 3}O{sub 7-{delta}}. For the first time, evidence for a vortex glass transition is detected in an untwinned single crystal of YBa{sub 2}Cu{sub 3}O{sub 7-{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.

Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
SC
DOE Contract Number:
AC02-06CH11357
OSTI ID:
942445
Report Number(s):
ANL/MSD/JA-31514
Journal Information:
Phys. Rev. Lett., Journal Name: Phys. Rev. Lett. Journal Issue: 25 ; Jun. 19, 2000 Vol. 84; ISSN 0031-9007; ISSN PRLTAO
Country of Publication:
United States
Language:
ENGLISH

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