US4632776A
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Ambient-pressure organic superconductor
Assignee: United States Department of Energy
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Filing: 1986-04-18
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Granted: 1986-12-30
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Expires: 2006-04-18
Abstract
Abstract A new class of organic superconductors having the formula (ET) 2 MX 2 wherein ET represents bis(ethylenedithio)-tetrathiafulvalene, M is a metal such as Au, Ag, In, Tl, Rb, Pd and the like and X is a halide. The superconductor (ET) 2 AuI 2 exhibits a transition temperature of 5 K which is high for organic superconductors.
Inventors
- 👤 Jack M. Williams
- 👤 Hsien-Hau Wang
- 👤 Mark A. Beno
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 03:48
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/80; H10N60/85; H10N60/851; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/802
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
52 words
A superconductor comprising a first layer of a compound with superconductor properties having the formula (ET) 2 MX 2 where ET is bis(ethylenedithio)tetrathiafulvalene as shown by the formula ##STR2## where M is a metal, X is a halide, and MX 2 is symmetrical; and a second supporting layer of a conductive metal.
Claim 2
Dependent Claim
52 words
A superconductor comprising a first layer of a compound with superconductor properties having the formula (ET) 2 MX 2 where ET is bis(ethylenedithio)tetrathiafulvalene as shown by the formula ##STR2## where M is a metal, X is a halide, and MX 2 is symmetrical; and a second supporting layer of a conductive metal.
Claim 3
Dependent Claim
22 words
The superconductor of claim 1 wherein M is Au, Ag, In, Tl, Rb, or Pd and X is I, Br or Cl.
Claim 4
Dependent Claim
11 words
The superconductor of claim 2 wherein the second layer is Cu.
Claim 5
Dependent Claim
13 words
The superconductor of claim 3 wherein M is Au and X is I.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-12-29 | 1990-06-30 | 1990-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-12-29 | 1994-06-30 | 1994-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-12-29 | 1998-06-30 | 1998-12-30 | $7700.00 | Window Closed / Lapsed |