Abstract
X-ray scattering close to the lock-in temperature has been measured as a function of temperature to investigate whether the discommensuration lattice is a useful description of the structure of . We review different models for the incommensurate structure and discuss how they might be distinguished by a scattering experiment. Our results are compared with earlier published x-ray measurements and with those obtained from nuclear spin-resonance techniques. All of the x-ray results suggest that higher harmonics of the scattering measured in the and planes are much weaker than predicted by the abrupt-discommensuration model. We conclude from the measurements that this theory does not provide an adequate description of the experimental results close to the lock-in transition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
