Genre
- Journal Article
Using a low-temperature stage X-ray diffractometer, we have investigated the temperature dependence of the lattice parameters of single crystal superconductors Bi2.2Sr1.8CaCu2Ox. The experimental results show that (i) the lattice constants increase linearly with increasing temperature above about 100 K; (ii) the c-axis lattice parameter shows a kink in the superconducting transition region, while the a, b-axis parameters do not show any anomalous behavior in this region; (iii) both a, b, and c show negative thermal expansion coefficients below 40-50 K, which may be related to the characteristics of the Cu-O bond.
DALHOUSIE UNIV,DEPT PHYS,HALIFAX,NS B3H 3J5,CANADA.
NEW YORK; 233 SPRING ST, NEW YORK, NY 10013
PLENUM PUBL CORP
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Source type: Electronic(1)
Language
- English
Subjects
- BI2212 HIGH-TEMPERATURE SUPERCONDUCTOR
- Physics, Applied
- LATTICE PARAMETER
- heat
- LOW-TEMPERATURE
- YBA2CU3OX SUPERCONDUCTOR
- TC
- PARAMETERS
- Physics, Condensed Matter
- DEPENDENCE
- NEUTRON-DIFFRACTION