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Titolo:
Peak effect and vortex channeling in heavily Pb-substituted Bi2Sr2CaCu2O8+y with planar defects
Autore:
Itaka, K; Taoka, H; Ooi, S; Shibauchi, T; Tamegai, T; Hiroi, Z; Takano, M;
Indirizzi:
Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan Univ Tokyo Tokyo Japan 1138656 ppl Phys, Bunkyo Ku, Tokyo 1138656, Japan Univ Tokyo, Inst Solid State Phys, Minato Ku, Tokyo 1068666, Japan Univ Tokyo Tokyo Japan 1068666 ate Phys, Minato Ku, Tokyo 1068666, Japan Kyoto Univ, Inst Chem Res, Uji, Kyoto 6110011, Japan Kyoto Univ Uji KyotoJapan 6110011 st Chem Res, Uji, Kyoto 6110011, Japan
Titolo Testata:
PHYSICA C
, volume: 341, anno: 2000,
parte:, 2
pagine: 1265 - 1266
SICI:
0921-4534(200011)341:<1265:PEAVCI>2.0.ZU;2-L
Fonte:
ISI
Lingua:
ENG
Soggetto:
EFFICIENT PINNING CENTERS; SINGLE-CRYSTALS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
7
Recensione:
Indirizzi per estratti:
Indirizzo: Itaka, K Univ Tokyo, Dept Appl Phys, Bunkyo Ku, Tokyo 1138656, Japan Univ Tokyo Tokyo Japan 1138656 Bunkyo Ku, Tokyo 1138656, Japan
Citazione:
K. Itaka et al., "Peak effect and vortex channeling in heavily Pb-substituted Bi2Sr2CaCu2O8+y with planar defects", PHYSICA C, 341, 2000, pp. 1265-1266

Abstract

Vortex states in heavily Pb-substituted Bi2Sr2CaCu2O8+y, (BSCCO) with planar defects (PDs) from overdoped to underdoped region is studied using microHall probes. Angular dependence of magnetization reveals that in a restricted angle and field region, magnetization first increases when the field istipped away from the c axis and then decreases again. This is understood as a manifestation of vortex channeling along the PDs. In addition, we observe an enhancement of magnetization (peak effect) at nearly constant c-axis component of the field and the peak field is almost independent of temperature and the doping level. The peak field has systematic correlation with the average spacing of PDs suggesting that a kind of matching effect is responsible for this phenomenon.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 04/12/20 alle ore 01:15:04