Phase Diagram of Heavy-Ion Irradiated Bi_2Sr_2CaCu_2O_8

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dc.creatorvan der Beek, C. J.
dc.creatorKonczykowski, M.
dc.creatorDrost, R. J.
dc.creatorKes, P. H.
dc.creatorSamoilov, A. V.
dc.creatorChikumoto, N.
dc.creatorBouffard, S.
dc.creatorFeigel'man, M. V.
dc.date1999-10-15
dc.date.accessioned2026-07-07T03:14:48Z
dc.date.available2026-07-07T03:14:48Z
dc.descriptionUsing dynamic and thermodynamic magnetization measurements, we analyze the phase diagram of Bi_2Sr_2CaCu_2O_8delta single crystals containing amorphous columnar defects created by heavy-ion irradiation. Reversible magnetization experiments yield the respective magnitudes of the pinning energy and entropy contributions to the free energy of the vortex lattice. It appears that the entropy contribution in the London regime is relatively minor in both unirradiated and irradiated crystals, except in the case of high density of columns and inductions B that are smaller than the interaction field H_int ~ B_phi / 6. The dependence of the entropy contribution on vortex- and defect density correlates well with measurements of the irreversibility line H_irr, which shows a sharp increase at H_int.
dc.description8 pages, 6 figures; paper submitted to the first Euroconference of vortex matter under extreme conditions and scales ("VORTEX"); Agia Pelagia, Crete, September 18-24, 1999. For publication in Physica C
dc.identifierhttps://arxiv.org/abs/cond-mat/9910230
dc.identifierhttp://arxiv.org/abs/cond-mat/9910230
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/29817
dc.subjectSuperconductivity
dc.titlePhase Diagram of Heavy-Ion Irradiated Bi_2Sr_2CaCu_2O_8
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