Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Evidence for planar pinning in heavily Pb-substituted Bi2Sr2CaCu2O8-gamma single crystals
Autore:
Itaka, K; Taoka, H; Ooi, S; Shibauchi, T; Tamegai, T;
Indirizzi:
Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan Univ Tokyo Tokyo Japan 1138656 ppl Phys, Bunkyo Ku, Tokyo 1138656, Japan
Titolo Testata:
PHYSICAL REVIEW B-CONDENSED MATTER
fascicolo: 14, volume: 60, anno: 1999,
pagine: R9951 - R9954
SICI:
0163-1829(19991001)60:14<R9951:EFPPIH>2.0.ZU;2-O
Fonte:
ISI
Lingua:
ENG
Soggetto:
CRITICAL-CURRENT-DENSITY; SUPERCONDUCTORS; MAGNETIZATION; YBA2CU3O7-DELTA; CENTERS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Itaka, K Univ Tokyo, Dept Appl Phys, Bunkyo Ku, 7-3-1 Hongo, Tokyo 1138656, Japan Univ Tokyo 7-3-1 Hongo Tokyo Japan 1138656 Tokyo 1138656, Japan
Citazione:
K. Itaka et al., "Evidence for planar pinning in heavily Pb-substituted Bi2Sr2CaCu2O8-gamma single crystals", PHYS REV B, 60(14), 1999, pp. R9951-R9954

Abstract

We studied the vortex pinning properties in Bi2.2-xPbxSr1.8CaCu2O8+y (0 less than or equal to x less than or equal to 0.6)single crystals, with and without laminar microstructures (LM's) parallel to the a axis. We found a large and temperature-dependent in-plane anisotropy in the critical current density (J(c)) in the case of x= 0.6 with LM's. Magnetization under various field directions was measured using micro-Hall probes. J(c), when the fieldis tilted within the LM's, is larger than that when the field is tilted away from the LM's. This strongly supports that LM's act as planar pinning centers in this system. We also found a crossover from fishtail-like behaviorto second-peak-like behavior when the field is tilted more than 70 degreesfrom the c axis. [S0163-1829(99)50938-7].

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 01:38:26