Abstract
Three new oxycarbonate superconductors recently obtained in our laboratory are described. (1) Sr2CuO2(CO3)1-x(BO3)x (Tc = 35 K) was synthesized under ambient pressure, providing a new method for carrier doping on the layered copper oxycarbonate system. (2) Can(Ca, Sr)2Cun+1(CO3)Oy (n = 1, 2, 3) was synthesized under high pressure. Superconductivity was achieved by substituting (BO3)3- for a part of (CO3)2-. (3) A new Hg system HgBa2Sr2Cu2(CO3)O6+δwas synthesized. Tc obtained from the magnetic susceptibility is about 66 K.
Original language | English |
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Pages (from-to) | 19-22 |
Number of pages | 4 |
Journal | Journal of Superconductivity |
Volume | 7 |
Issue number | 1 |
DOIs | |
Publication status | Published - Feb 1 1994 |
Externally published | Yes |
Keywords
- Ca n(Ca, Sr)Cu (Co)O (n = 1,2,3)
- HgBaSrCu(CO)O
- SrCuO(CO)(BO)
- copper oxycarbonate, copper oxyborate
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Physics and Astronomy (miscellaneous)