WO1994003932A1 - Method for the functional optimisation of high temperature superconductors by controlling the morphological proportions of their thin layers - Google Patents

Method for the functional optimisation of high temperature superconductors by controlling the morphological proportions of their thin layers

Info

Publication number
WO1994003932A1
WO1994003932A1 PCT/FR1993/000782 FR9300782W WO1994003932A1 WO 1994003932 A1 WO1994003932 A1 WO 1994003932A1 FR 9300782 W FR9300782 W FR 9300782W WO 1994003932 A1 WO1994003932 A1 WO 1994003932A1
Authority
WO
Grant status
Application
Patent type
Prior art keywords
superconductors
proportions
method
layers
thin
Prior art date
Application number
PCT/FR1993/000782
Other languages
French (fr)
Inventor
Jean Claude Perez
Original Assignee
Jean Claude Perez
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H01L39/00Devices using superconductivity; Processes or apparatus peculiar to the manufacture or treatment thereof or of parts thereof
    • H01L39/24Processes or apparatus peculiar to the manufacture or treatment of devices provided for in H01L39/00 or of parts thereof
    • H01L39/2419Processes or apparatus peculiar to the manufacture or treatment of devices provided for in H01L39/00 or of parts thereof the superconducting material comprising copper oxide
    • H01L39/2483Introducing flux pinning centres

Abstract

The invention relates to means for increasing and stabilizing the performance and yields of high temperature superconductors, both magnetically and electrically. The method consists in approximating the pyramidal spiral forms observed on the thin layers of said superconductors to the optimal 'divine proportion'. The theoretical justification results from natural phenomena wherein such proportions have been discovered by the author between the relative proportions of nucleotides in DNA (patent application numbers 9207571, 9207572 and 9207573). The method may be applied either as of today, a posteriori, by sorting and selection after measurements of the form of superconductors, or in the medium term and a priori, by direct actions and control on the superconductor production process.
PCT/FR1993/000782 1992-07-31 1993-07-30 Method for the functional optimisation of high temperature superconductors by controlling the morphological proportions of their thin layers WO1994003932A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR92/09517 1992-07-31
FR9209517A FR2694837B1 (en) 1992-07-31 1992-07-31 Method for functional optimization superconducting at high temperature, by control of morphological proportions of their thin films.

Publications (1)

Publication Number Publication Date
WO1994003932A1 true true WO1994003932A1 (en) 1994-02-17

Family

ID=9432508

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1993/000782 WO1994003932A1 (en) 1992-07-31 1993-07-30 Method for the functional optimisation of high temperature superconductors by controlling the morphological proportions of their thin layers

Country Status (2)

Country Link
FR (1) FR2694837B1 (en)
WO (1) WO1994003932A1 (en)

Non-Patent Citations (6)

* Cited by examiner, † Cited by third party
Title
CRYOGENICS vol. 33, no. 1, 1993, OXFORD GB pages 21 - 27 V. M. PAN ET AL. 'Dislocation model of superconducting transport properties of YBCO thin films and single crystals' *
IEEE POTENTIALS vol. 9, no. 3, Octobre 1990, NEW YORK US pages 34 - 35 D. R. MACK 'The magical Fibonacci number' *
MODERN PHYSICS LETTERS B vol. 2, no. 7, Août 1988, SINGAPORE pages 953 - 956 N. RIVIER 'Crystallography of spiral lattices' *
NATURE vol. 350, no. 6316, 28 Mars 1991, LONDON GB pages 279 - 280 C. GERBER ET AL. 'Screw dislocations in high-Tc films' cité dans la demande *
SCIENCE vol. 253, no. 5018, 26 Juillet 1991, NEW YORK US pages 427 - 429 S. JIN ET AL. 'Dislocations and flux pinning in YBa2Cu3O7-d' cité dans la demande *
SUPERCONDUCTOR SCIENCE AND TECHNOLOGY vol. 5, no. 1S, 1992, LONDON GB pages 125 - 128 J. MANNHART ET AL. 'pinning centers in YBa2Cu3O7-d films' *

Also Published As

Publication number Publication date Type
FR2694837B1 (en) 1995-06-09 grant
FR2694837A1 (en) 1994-02-18 application

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