I have a xrd pattern, in that i suspect that one of the peak may be due to SL, i want to understand how to confirm it or reject it
Hi,
Can you tell what is your material structure? What scan mode you were using?
Sundar R If it is a fine superlattice structure has formed, XRD fringes near main Bragg peak should be visible in 2 theta omega profile. To view the fringes, high resolution log scale XRD measurements might help.
The super lattice diffraction peaks are indicating a doubling of unit cell from lead magnesium niobate (PMN) single crystal using X-ray diffraction technique. The broad width of the super lattice diffraction peaks indicates that the super lattice ordering in PMN is of short range. Also check the temperature as a parameter, in some cases temperature does not matter at all.
For thin film:
Super lattice measurements in multilayered heteroepitaxial structures, which manifest as satellite peaks surrounding the main diffraction peak from the film. Film thickness and quality can be deduced from the data.
Hope my answer will help you to proceed further. Thank you.
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