Pinning influence on high-field reversible magnetization in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} single crystals

Journal Article · Fri Sep 01 04:00:00 EDT 1995 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.52.R7042· OSTI ID:115851

Puzniak, R; Ricketts, J; Schuetzmann, J; Gu, G D; Koshizuka, N ^[1]

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1. Superconductivity Research Laboratory, International Superconductivity Technology Center, 10-13 Shinonome 1-chome, Koto-ku, Tokyo 135 (Japan)

The temperature and field dependence of the magnetization in Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} single crystals was measured above the irreversibility line in magnetic fields parallel to the {ital c} axis. We found a significant change in the slope of the magnetization {ital dM}/{ital dT} approximately 5 K above the irreversibility temperature. Related changes in the field dependence of the reversible magnetization slope {ital dM}/{ital d}(ln{ital H}) were also observed. The effect is attributed to the influence of pinning on the distribution of vortices in the material. A modification of the relation describing the field dependence of the reversible magnetization in a superconductor with pinning is proposed.

• Sponsoring Organization: USDOE
• OSTI ID: 115851
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 10 Vol. 52; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BISMUTH OXIDES
CALCIUM OXIDES
COPPER OXIDES
HIGH-TC SUPERCONDUCTORS
MAGNETIC FIELDS
MAGNETIC FLUX
MAGNETIZATION
MONOCRYSTALS
STRONTIUM OXIDES
TEMPERATURE DEPENDENCE