Single crystal X-ray characterization of the incommensurate modulation in the high Tc superconductor Bi2Sr 2CaCu2O8.
- 1 January 1988
- journal article
- Published by EDP Sciences in Journal de Physique
- Vol. 49 (12), 1987-1991
- https://doi.org/10.1051/jphys:0198800490120198700
Abstract
We have studied the incommensurate modulation in Bi2Sr 2CaCu2O8 by single crystal X-ray diffraction. First and second order satellite reflections with wave vectors q1 = (0,0.211,1) and q2 = 2q1 have been measured. The period of the modulation along b is 25.59 Å. A preliminary analysis of the satellite intensities indicates that the modulation involves strong displacive components polarized along b and c. No low-temperature changes have been observed. The single crystals exhibit a large systematic mosaicityKeywords
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