EP 1090398 A4 20070502 - CRITICAL DOPING IN HIGH-Tc SUPERCONDUCTORS FOR MAXIMAL FLUX PINNING AND CRITICAL CURRENTS
Title (en)
CRITICAL DOPING IN HIGH-Tc SUPERCONDUCTORS FOR MAXIMAL FLUX PINNING AND CRITICAL CURRENTS
Title (de)
KRITISCHE DOTIERUNG IN HOCHTEMPERATUR-SUPRALEITERN FÜR MAXIMALE "FLUX PINNING" UND KRITISCHE STRÖME
Title (fr)
DOPAGE CRITIQUE DES SUPRACONDUCTEURS A TEMPERATURE CRITIQUE ELEVEE POUR UN LAMINAGE DE FLUX ET DES COURANTS CRITIQUES MAXIMAUX
Publication
Application
Priority
- NZ 9900095 W 19990618
- NZ 33072898 A 19980618
- NZ 33397199 A 19990129
Abstract (en)
[origin: WO9966541A2] A method for maximising critical current density (Jc) of high temperature superconducting cuprate materials (HTSC) which comprises controlling the doping state or hole concentration of the materials to be higher than the doping state or hole concentration of the material that provides a maximum superconducting transition temperature (Tc), and to lie at about a value where the normal-state pseudogap reduces to a minimum. Jc is maximised at hole concentration p APPROX 0.19. HTSC compounds are also claimed.
IPC 1-7
IPC 8 full level
C01G 1/00 (2006.01); C01G 29/00 (2006.01); H01B 12/00 (2006.01); H01B 13/00 (2006.01); H01L 39/12 (2006.01)
CPC (source: EP)
H10N 60/857 (2023.02)
Citation (search report)
- [X] WO 8906222 A1 19890713 - UNISEARCH LTD [AU]
- [AD] US 5619141 A 19970408 - TALLON JEFFERY L [NZ], et al
- [XP] FUJINAMI K ET AL: "Effect of overdoping on the irreversibility field and critical current density of the HgBa2Ca2Cu3O8+delta superconductor", PHYSICA C, NORTH-HOLLAND PUBLISHING, AMSTERDAM, NL, vol. 307, no. 3-4, October 1998 (1998-10-01), pages 202 - 208, XP004149995, ISSN: 0921-4534
- [A] RAVEAU B ET AL: "Control of oxygen stoichiometry and creation of nuclear tracks, two important issues for optimization of superconductivity in layered copper oxides", PHYSICS AND MATERIALS SCIENCE OF HIGH TEMPERATURE SUPERCONDUCTORS II. PROCEEDINGS OF THE NATO ADVANCED STUDY INSTITUTE KLUWER ACADEMIC PUBLISHERS DORDRECHT, NETHERLANDS, 1992, pages 167 - 198, XP009077838, ISBN: 0-7923-1619-3
- See references of WO 9966541A2
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9966541 A2 19991223; WO 9966541 A3 20000420; AU 4806499 A 20000105; EP 1090398 A2 20010411; EP 1090398 A4 20070502; JP 2002518287 A 20020625
DOCDB simple family (application)
NZ 9900095 W 19990618; AU 4806499 A 19990618; EP 99931620 A 19990618; JP 2000555283 A 19990618