Toroidal Analyser - (ARPES)

Owned by AS Spectroscopy (Unlicensed)
Last updated: Mar 05, 2024 by AS Spectroscopy Wiki
1 min read

The toroidal analyser endstation is a custom-built electron spectrometer built by La Trobe University, for performing angle-resolved photoelectron spectroscopy (ARPES)

 

The unique toroidal electrode geometry allows for rapid and wide momentum space mapping. The system is moved onto the Spectroscopy Branchline during beamtimes, and in between beamtimes is able to perform offline ARPES measurements using a high intensity vacuum ultraviolet lamp. Recent addition to the system include a scanning tunnelling microscope (STM) and 2D delayline detector. The system features a dedicated chamber for sample growth, preparation cleaning, cleaving. Sample can be cooled to cryogenic temperature for measurement. The toroidal analyser is an advanced instrument, and requires users with UHV experience to be able to run properly.

Detectors

  • Toroidal geometry angle-resolving electron energy spectrometer

Sample Environment

Ultra High Vacuum (UHV) environment, base pressure 1 × 10-10 mbar

Preparation facilities

  • STM

  • LN cooling to 80K. Future upgrade to LHe cooling capabilities (TBA)

  • LEED

  • Ar sputter gun

Click here for information on safe transport and handling of samples.

Data analysis
Data formats

  • Custom format

Analysis software

  • Igor Pro