Structural investigation of high-tc superconductors under high pressure |
| |
| Authors: | W H Fietz C A Wassilew H A Ludwig B Obst C Politis M R Dietrich |
| |
| Institution: | Kernforschungszentrum und Universit?t , Karlsruhe ITP/KfK Postfach 3640, D-7500, Karlsruhe, F. R. Germany |
| |
| Abstract: | Abstract The results of X-ray investigations of Tl2Ba2Ca2Cu3O10 show a preferential c-axis decrease under high pressure, leading to a bulk modulus of B = 1370 kbar at 300 K. The results are compared to previous investigations of La2CuO4, La1.8Sr0.2CuO4 and Pr2CuO4, that show a similar linear compressibility in a- and b- axis direction. The linear compressibility in c-axis direction is dominated by the degeneration of the Cu-O octohedra and by the compressibility of intercalated layers. |
| |
| Keywords: | high-Tc superconductor Tl2Ba2Ca2Cu3O10 compressibility high pressure structural investigation bulk modulus |
|
|
