Centre National De La Recherche Scientifique

Thomson-csf

Compagnie Generale D'electricite

Bernard Raveau

Jackie Provost

Martine Doisy

Andre Sulpice

Didier Robbes

Bernard Chevalier

Ronan Stephan

Daniel Bloyet

Gilbert Desgardin

Brahim Boufrou

Jean-Louis Tholence

Marc L Sing

Claude Michel

Yves Montfort

Francis Deslandes

The invention relates to a ceramic composition. It comprises at least one phase of a structure derived from that of tungsten tetragonal bronze and at least one phase of a structure derived from Perovskite. Application to the electrical and electronics industry.

Ceramic composition containing a tungsten tetragonal bronze phase with a

A superconducting magnetometer, using a superconducting compound at the temperature of liquid nitrogen, is disclosed. It consists in the use, as a sensitive element, of a piece of superconducting material with a central constriction enabling the demarcation of a channel in which the number of useful, intrinsic loops is sufficiently limited for the sensitive element to behave like a DC SQUID with a single loop.

Superconducting DC SQUID magnetometer working in liquid nitrogen

A superconducting mixed valence copper oxide, having a formula of the type:

Superconductive mixed valence copper oxide, and method of making it

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Beuville, France

Bernard Raveau