Data supporting "Ultrasoft surface phonons and electron-phonon coupling in the topological semimetal InBi(001)"

Data supporting "Ultrasoft surface phonons and electron-phonon coupling in the topological semimetal InBi(001)"

This repository contains raw experimental helium atom scattering (HAS) and helium spin-echo (HeSE) data measured on InBi(001), together with the optimised structure obtained from CASTEP calculations.

The data are organised as follows:

• elastic_data/ – Elastic diffraction scans measured using HAS and HeSE. The HAS data are provided as .txt files containing scattered intensity as a function of incident scattering angle, while the HeSE data are stored as MATLAB .mat files.

• inelastic_data/ – Inelastic HeSE measurements. Each .mat file contains the raw experimental data required to extract one phonon spectrum measured on InBi(001).

• InBi.geom – Optimised atomic structure of InBi(001) obtained from CASTEP calculations.

The MATLAB .mat files can be read and analysed using MATLAB. The analysis scripts and methodology for processing the HeSE data are available through the Cambridge Atom Scattering Centre's Atom Scattering Software Archive (ASSA):

https://github.com/Cambridge-Atom-Scattering-Centre/ASSA