ISSN:
1089-7550
Source:
AIP Digital Archive
Topics:
Physics
Notes:
The intensity distribution of the satellites from the incommensurate modulation 0.21b*+c* and the additional modulation-related reflections, described by 0.21b* and incompatible with the generally accepted Bbmb symmetry, have been studied in exactly the b*c* plane by means of x-ray diffraction for a high-quality Bi2Sr2CaCu2Oy crystal. The mosaic spread of this crystal, with only a single large domain, is as small as 0.15°. Broadening solely along the c* direction of the satellites, especially the additional modulation-related reflections, was clearly observed and further confirmed by a monochromatized x-ray Laue photograph, which should be intrinsic to the superstructure in bulk Bi2Sr2CaCu2Oy crystals. Apart from the broadening relative to the Bragg reflections, for the first time a weak diffuse feature fundamental to the satellites was also clearly detected. © 1996 American Institute of Physics.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1063/1.361791
