Actions

Download Analytics Citations

Export to: EndNote  |  Zotero  |  Mendeley

Collections

This file is not currently in any collections.

Bethe ridge electron Compton spectroscopy [dataset] Open Access

Compton spectroscopy measures J(pz), the density of occupied electronic states with momentum component pz. In a transmission electron microscope (TEM) Compton spectroscopy is performed by acquiring a momentum resolved, dark-field electron energy loss spectrum (EELS). Here it is shown that the Bethe ridge in a single energy filtered diffraction pattern can provide identical J(pz) information. The energy filtered TEM (EFTEM) approach is more dose efficient, since all (projected) momenta pz are recorded in parallel. For weakly diffracting specimens, the J(pz) profiles extracted using EFTEM are in reasonable agreement with dark-field EELS. Bragg diffraction and thermal diffuse scattering are known to introduce artefacts in Compton spectroscopy, and this is true for the EFTEM method as well. The artefacts can however be mitigated by analysing suitably thin specimens.

Descriptions

Resource type

Dataset

Contributors

Creator: Hayes, Sam ¹
Dhamotharan, Kaviyadharshini ¹
Clark, Stewart ¹
Mendis, Budhika ¹

¹ Durham University

Funder

Engineering and Physical Sciences Research Council

Research methods

Other description

Data files are in DM3 format and can be opened using Gatan Digital Micrograph proprietary software or ImageJ freeware.

Keyword

Compton scattering
Bethe ridge
Energy filtered diffraction
Electron bonding anisotropy

Subject

Electrons, Compton

Location

Language

Cited in

Identifier

ark:/32150/r1q237hs037
doi:10.15128/r1q237hs037

Rights

Creative Commons Attribution 4.0 International (CC BY)

Publisher

Durham University

Date Created

File Details

Depositor

B.G. Mendis

Date Uploaded

27 August 2025, 10:08:45

Date Modified

27 August 2025, 12:08:35

Audit Status

Audits have not yet been run on this file.

Characterization

File format: zip (ZIP Format)

Mime type: application/zip

File size: 4317643

Last modified: 2025:08:27 11:04:01+01:00

Filename: Raw Data.zip

Original checksum: 8ac37b66ebb5eab3905fbd2ae5778ac7