Upper limit of the Bose-glass transition in YBa{sub {bold 2}}Cu{sub {bold 3}}O{sub {bold 7}} at high density of columnar defects

Journal Article · Mon Apr 01 04:00:00 EST 1996 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.76.2798· OSTI ID:284497

Samoilov, A V; Feigelman, M V; Konczykowski, M; Holtzberg, F ^[1]

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1. Laboratoire des Solides Irradies, Ecole Polytechnique, 91128 Palaiseau (France)

The Bose-glass transition in YBa{sub 2}Cu{sub 3}O{sub 7} single crystals with columnar defects produced by irradiation with 5.8 GeV Pb ions was studied both experimentally and theoretically. The Bose-glass transition line {ital B}{sub BG}({ital T}) progressively shifts upwards with increasing doses of irradiation {phi}, up to 10{sup 11}ions/cm{sup 2}. For larger {phi}, the {ital B}{sub BG}({ital T}) line does not shift anymore, and saturates at {ital B}{sub BG}{sup max}(T), which is still considerably below {ital H}{sub {ital c}2}({ital T}). Theoretically, we show that the observed evolution of the Bose-glass transition line provides strong evidence for an {ital intermediate} or {ital disentangled} vortex liquid phase, sandwiched between the melting line {ital B}{sub {ital m}}({ital T}) and {ital B}{sub BG}{sup max}({ital T}), in {ital virgin} {ital samples}. {copyright} {ital 1996 The American Physical Society.}

• OSTI ID: 284497
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 15 Vol. 76; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
BARIUM OXIDES
BOSE-EINSTEIN CONDENSATION
COPPER OXIDES
CRYSTAL DEFECTS
HIGH-TC SUPERCONDUCTORS
MAGNETIC FLUX
PHASE TRANSFORMATIONS
RADIATION EFFECTS
YTTRIUM OXIDES