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Title:
SUPERCONDUCTORS WITH SUPER HIGH CRITICAL TEMPERATURES
Document Type and Number:
WIPO Patent Application WO2006073464
Kind Code:
A3
Abstract:
A new class of novel super high temperature superconductive compositions and structures (SHTC), named Schrieffer Superconductors are disclosed. These superconductive compositions and structures preferably include a combination of (1) a metal, the metal characterized in having (i) a broad conduction electron band (or bands) and (ii) a low effective mass, and (2) magnetic species, wherein the spins of the magnetic species are correlated at relatively long distances. Preferably, the spins of the magnetic species are magnetically ordered ferromagnetically over relatively long range. One preferred composition is Au?2#191Mn?2-z#191Al?z#191 where 0.1 < z < 0.5, preferably 0.3.

Inventors:
SCHRIEFFER JOHN ROBERT (US)
HAMMOND ROBERT BRUCE (US)
EDDY MICHAEL MARTIN (US)
KIHLSTROM KENNETH E (US)
SALKOLA MARKKU L (US)
CORTES BALAM QUITZE ANDRES WIL (US)
Application Number:
PCT/US2005/016949
Publication Date:
November 02, 2006
Filing Date:
May 11, 2005
Export Citation:
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Assignee:
ABSCO INTERNAT INC (US)
SUPERCONDUCTOR TECH (US)
SCHRIEFFER JOHN ROBERT (US)
HAMMOND ROBERT BRUCE (US)
EDDY MICHAEL MARTIN (US)
KIHLSTROM KENNETH E (US)
SALKOLA MARKKU L (US)
CORTES BALAM QUITZE ANDRES WIL (US)
International Classes:
H01L39/24
Other References:
OXLEY ET AL.: "Heusler alloys", JOURNAL OF APPLIED PHYSICS, vol. 34, 1963, pages 1362 - 1363
MORRIS ET AL.: "Search for New Heusler Alloys", PROCEEDINGS OF THE PHYSICAL SOCIETY, vol. 73, 1959, pages 520 - 523
AYUELA ET AL.: "Structural properties of magnetic Heusler alloys", J. PHYS.: CONDENS. NATTER 11, 1990, pages 2017 - 2026
ZAITSEV ET AL: "The Special Features of Ferromagnetism in Ordered Heusler Alloys", JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, vol. 94, no. 2, 2002, pages 367 - 376
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