Flux pinning by columnar defects in Bi2Sr2CaCu2O8+d single crystals and annealing effects

Authors
Muller, C Majewski, P Klaumunzer, S Aldinger, F
Citation
C. Muller et al., Flux pinning by columnar defects in Bi2Sr2CaCu2O8+d single crystals and annealing effects, NUCL INST B, 146(1-4), 1998, pp. 577-580
Citations number
12
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS
ISSN journal
0168583X → ACNP
Volume
146
Issue
1-4
Year of publication
1998
Pages
577 - 580
Database
ISI
SICI code
0168-583X(199812)146:1-4<577:FPBCDI>2.0.ZU;2-6
Abstract
Pinning properties of Bi2212 single crystals irradiated with 340 MeV Xe18+- ions before and after annealing are investigated and compared. Isothermal m agnetic hysteresis loops are recorded and ac susceptibility measurements ar e also carried out. Inhomogeneities forming during the annealing process sh ow higher critical current density, j(c), at fields greater than or similar to the matching field, B-phi. A strong effect of collective flax pinning i n the high magnetic field regime is proposed. (C) 1998 Elsevier Science B.V . All rights reserved.