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Chalcogenide Superconductors

Award Information
Agency: Department of Defense
Branch: Missile Defense Agency
Contract: N/A
Agency Tracking Number: 26233
Amount: $50,000.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Timeline
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
Po Box 478, Los Alamos, NM, 87544
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Henry Laquer
 (505) 753-3788
Business Contact
Phone: () -
Research Institution
N/A
Abstract
WE PROPOSE TO SEARCH FOR NEW SUPERCONDUCTORS THAT ARE SIMILAR TO THE PEROVSKITE-BASED HIGH TEMPERATURE SUPERCONDUCTORS (HTS), BUT WITH THE OXYGEN REPLACED BY A CHALCOGEN, THAT IS SULFUR, SELENIUM OR TELLURIUM. WE BELIEVE THAT THE HTS COPPER OXIDES ARE NOT A UNIQUE ACCIDENT OF NATURE, BUT THAT THERE ARE OTHER COMPLEX CHEMICAL COMPOUNDS THAT COULD ALSO BE SUPERCONDUCTING. AN OBVIOUS PLACE TO LOOK WOULD BE IN THE SAME COLUMN OF THE PERIODIC TABLE, GOING FROM THE OXIDES TO THE CHALCOGENIDES. EXCEPT FOR THE CHEVREL PHASES, VERY LITTLE HAS BEEN PUBLISHED ON THE POSSIBLE SUPERCONDUCTIVITY OF SUCH COMPOUNDS. THIS MAY WELL BE RELATED TO THEIR REACTIVITY, INSTABILITY, OR TOXICITY. WE PLAN TO ADDRESS THESE ISSUES IN PHASE I OF OUR PROPOSAL, WITH PARTICULAR EMPHASIS ON THE SAFE ENVIRONMENTALLY SOUND HANDLING OF MIXED CHALCOGENIDES. ONCE WE HAVE ESTABLISHED ACCEPTABLE PROCEDURES, WE PLAN TO APPLY THE LESSONS ABOUT DOPING AND DEFECT STRUCTURES LEARNED FROM THE HTS OXIDES TO INVESTIGATE THE POTENTIAL SUPERCONDUCTIVITY OF THE CHALCOGENIDES.

* Information listed above is at the time of submission. *

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