Measurement of High Density Electrons Above a Helium Film on an Amorphous Metal Substrate

K. E. Castoria, S. A. Lyon

Research output: Contribution to journalArticlepeer-review

Abstract

We have measured two-dimensional electron systems bound to a thin helium film supported by a metallic substrate. We report on our measurement of electron density obtained via a Kelvin probe technique. The underlying metallic substrate is an amorphous metallic alloy (TaWSi), which can support large uniform densities due to its low surface roughness and homogeneous work function. We find that this substrate is able to support high enough densities that the electrons are expected to be Fermi-degenerate.Please confirm the corresponding author is correctly identified.Yes, this information is correct.

Original languageEnglish (US)
JournalJournal of Low Temperature Physics
DOIs
StateAccepted/In press - 2022

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

Keywords

  • Amorphous metal
  • Electrons on helium
  • Fermi degenerate
  • Thin film

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