Session B11: High Pressure I
11:15 AM–2:15 PM, Monday, March 21, 2005
LACC Room: 153C
Sponsoring Units:
DCMP DMP
Chair: Matteo Cococcione, MIT
Abstract ID: BAPS.2005.MAR.B11.13
Abstract: B11.00013 : High Pressure Synthesis of a New 0201 type Oxychloride High Tc Superconductor by ``Apical Oxygen Doping''
1:39 PM–1:51 PM
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Abstract 
Authors:
Q. Q. Liu
X. M. Qin
C. Q. Jin
(Institute of Physics, Chinese Academy of Sciences)
We present our recent research works on high pressure synthesis of high Tc superconductors in the alkaline earth copper oxychloride system of Sr$_{2}$CuO$_{2}$Cl$_{2}$, the isostructure compound with La$_{2}$CuO$_{4,}$ where the apical site relative to the [CuO2] plane is chlorine rather than the usual oxygen. Using the ``apical oxygen doping'' mechanism, i.e., partially substituting the oxygen for chlorine, we succeeded in synthesizing a new 0201 type superconductor Sr$_{2}$CuO$_{2+\delta }$Cl$_{2-x}$. Nearly single phase of Sr$_{2}$CuO$_{2+\delta }$Cl$_{2-x}$ superconductors were obtained, showing superconducting transition at 35 K for the as-prepared sample.
To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2005.MAR.B11.13