Global Patent Index - EP 1090398 A2

EP 1090398 A2 2001-04-11 - 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

EP 1090398 A2 (EN)

Application

EP 99931620 A

Priority

  • NZ 9900095 W
  • NZ 33072898 A
  • NZ 33397199 A

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 (main, further and additional classification)

H01B 12/00; C04B 35/50; H01L 39/12

IPC 8 full level (invention and additional information)

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 (invention and additional information)

H01L 39/126 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

WO 9966541 A2 19991223; WO 9966541 A3 20000420; AU 4806499 A 20000105; EP 1090398 A2 20010411; EP 1090398 A4 20070502; JP 2002518287 A 20020625

INPADOC legal status


2009-12-02 [18D] DEEMED TO BE WITHDRAWN

- Effective date: 20090609

2007-10-17 [17Q] FIRST EXAMINATION REPORT

- Effective date: 20070807

2007-05-02 [A4] SUPPLEMENTARY SEARCH REPORT

- Effective date: 20070209

2001-04-11 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 20010117

2001-04-11 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB IT NL