Large enhancement of peak effect induced by heavy Pb doping in Bi2Sr2CaCu2O8+δ single crystals

WANG, X. L ; HORVAT, J ; et al.

In: Proceedings of Symposium B of the Fifth International Conference on Advanced Materials IUMRS-ICAM'99: High-Tc Superconductors, Beijing, China, 13-18 June 1999, Jg. 337 (2000), Heft 1-4, S. 225-228

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The peak effect in heavily Pb-doped Bi2Sr2CaCu2O8+δ single crystals was studied by measuring the magnetisation hysteresis (M-H) loop. In contrast to the weak peak effect in pure single crystals, the Pb-doped crystals showed a very strong peak effect in a very wide temperature range, from 20 K up to Tc. The peak field, Hpeak, was as high as 0.4 T. The effect of annealing on the peak effect was also studied. Oxygen overdoping enhances the peak effect more than the underdoping. A comparison study of the peak effect was done for pure, Pb-doped Bi2212 crystals and Y123 samples. A novel method was used to characterise the peak effect. Results showed that the peak effect in the Pb-doped Bi2212 is even stronger than in Y123.

Titel:	Large enhancement of peak effect induced by heavy Pb doping in Bi2Sr2CaCu2O8+δ single crystals
Autor/in / Beteiligte Person:	WANG, X. L ; HORVAT, J ; LIU, H. K ; SUN, L ; DOU, S. X
Link:	View record from PASCAL Archive
Zeitschrift:	Proceedings of Symposium B of the Fifth International Conference on Advanced Materials IUMRS-ICAM'99: High-Tc Superconductors, Beijing, China, 13-18 June 1999, Jg. 337 (2000), Heft 1-4, S. 225-228
Quelle:	Proceedings of Symposium B of the Fifth International Conference on Advanced Materials IUMRS-ICAM'99: High-T c Superconductors, Beijing, China, 13-18 June 1999Physica. C. Superconductivity and its applications 337(1-4):225-228; Jg. 337 (2000) 1-4, S. 225-228
Veröffentlichung:	Amsterdam: Elsevier Science, 2000
Medientyp:	Konferenz
Umfang:	print, 9 ref
Schlagwort:	Crystallography Cristallographie cristallogenèse Condensed state physics Physique de l'état condensé Sciences exactes et technologie Exact sciences and technology Physique Physics Etat condense: structure electronique, proprietes electriques, magnetiques et optiques Condensed matter: electronic structure, electrical, magnetic, and optical properties Supraconductivité Superconductivity Propriétés des supraconducteurs de type i et de type ii Properties of type I and type II superconductors Réseaux de vortex, ancrage de flux, fluage de flux Vortex lattices ,flux pinning, flux creep Courants critiques Critical currents Cuprates supraconducteurs (supraconducteurs à haute tc et composés mères isolants) Cuprates superconductors (high tc and insulating parent compounds) Cuprates à base de bismuth Bi-based cuprates High-Tc compounds Composé minéral Inorganic compounds Métal transition composé Transition element compounds Aimantation Magnetization Ancrage flux Flux pinning Bismuth oxyde Bismuth oxides Calcium oxyde Calcium oxides Composé n éléments Multi-element compounds Cuivre oxyde Copper oxides Densité courant critique Critical current density Densidad corriente crítica Etude expérimentale Experimental study Hystérésis magnétique Magnetic hysteresis Matériau dopé Doped materials Monocristal Monocrystals Plomb oxyde Lead oxides Strontium oxyde Strontium oxides Supraconducteur haute température High-Tc superconductors (Bi,Pb)Sr2CaCu2O8+δ Bi Ca Cu O Pb Sr Effet pic Peak effect
Sonstiges:	Nachgewiesen in: PASCAL Archive Sprachen: English Original Material: INIST-CNRS Document Type: Conference Paper File Description: text Language: English Author Affiliations: Institute for Superconducting and Electronic Materials, University of Wollongong, Wollongong, NSW 2522, Australia Rights: Copyright 2001 INIST-CNRS ; CC BY 4.0 ; Sauf mention contraire ci-dessus, le contenu de cette notice bibliographique peut être utilisé dans le cadre d’une licence CC BY 4.0 Inist-CNRS / Unless otherwise stated above, the content of this bibliographic record may be used under a CC BY 4.0 licence by Inist-CNRS / A menos que se haya señalado antes, el contenido de este registro bibliográfico puede ser utilizado al amparo de una licencia CC BY 4.0 Inist-CNRS Notes: Physics of condensed state: electronic structure, electrical, magnetic and optical properties

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