Osama Ibrahim

5 Questions 7 Answers 0 Followers

Questions related from Osama Ibrahim

What calculations is Strain++ performing to generate the images produced? And how these can be related to the manual lattice distortion calculations?

Dear Researchers, We can apply Strain ++ (https://jjppeters.github.io/Strainpp/) to measure strain in HRTEM images. This can be presented as strain maps wherein there is no data generated....

12 September 2023 2,672 2 View

How to determine lattice distortion from HRTEM image?

In order to study strain and lattice distortion determination, HR-TEM is applied to image the crystal structure at a low-Ge/high-Ge boundary directly. What the best methodology to quantify stress...

12 March 2023 6,432 5 View

How to do Rietveld analysis by GSAS II?

Hi Researchers, I am currently working on RietVeld analysis using HighScore Plus & GSAS II. In case of analysis via GSAS II when I doing background refinement there seems a error as invalid...

20 October 2022 4,146 4 View

How to estimate atomic weight from XRD peak fitted by Gaussian function?

Gaussian curves are obtained from multiple XRD peaks via Origin. This is used to convolute complex peak.

17 February 2022 9,276 3 View

Reitveld refinement via GSAS II

Hi all, There is a refinement error when I am doing background calculations. The error message is "HessianLSQ -- ouch #0: look for invalid parameter (see console)". Any comments would be highly...

01 January 1970 1,202 2 View