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A new series of oxycarbonate superconductors (cu(0.5)c(0.5))(m)ba(m+1)ca(n-1)cu(n)o2(m+n)+1
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Kawashima, T. Takayama-Muromachi, E. Matsui, Y. |
| Copyright Year | 1995 |
| Description | We found a new series of oxycarbonate superconductors in the Ba-CaCu-C-O system under high pressure of 5 GPa. Their ideal formula is (Cu(0.5)C(0.5)(m)Ba(m+1)Ca(n-1)Cu(n)O2)((m+n)+1) ((Cu,C)-m(m+1)(n-1)n). Thus far, n = 3, 4 members of the m = 1 series, (Cu,C)-1223 and (Cu,C)-1234, have been prepared in bulk while n = 4, 5 members, (Cu,C)-2334 and (Cu,C)-2345, have been prepared for the m = 2 series. (Cu,C)-1223 shows superconductivity below 67 K while T(sub c)'s of other compounds are above 110 K. In particular, (Cu,C)-1234 has the highest T(sub c) of 117 K. |
| File Size | 2208735 |
| Page Count | 7 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19960000286 |
| Archival Resource Key | ark:/13960/t9s22wz24 |
| Language | English |
| Publisher Date | 1995-04-01 |
| Access Restriction | Open |
| Subject Keyword | Solid-state Physics Temperature Dependence Temperature Distribution Calcium Oxides Molecular Structure Superconductors Materials Barium Oxides Superconductivity Carbon Suboxides Carbonates Oxygen Compounds Copper Oxides High Pressure Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
