Hallmark of quantum skipping in energy filtered lensless scanning electron microscopy

A. K. Thamm, J. Wei, J. Zhou, C. G.H. Walker, H. Cabrera, M. Demydenko, D. Pescia*, U. Ramsperger, A. Suri, A. Pratt, S. P. Tear, M. M. El-Gomati

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract

We simulate the electronic system of ejected electrons arising when a tip, positioned few 10 nm away from a surface, is operated in the field emission regime. We find that, by repeated quantum reflections (“quantum skipping”), electrons produced at the nanoscale primary site are able to reach the macroscopic environment surrounding the tip-surface region. We observe the hallmark of quantum skipping in an energy filtered experiment that detects the spin of the ejected electrons.

Original languageEnglish
Article number052403
JournalApplied Physics Letters
Volume120
Issue number5
DOIs
Publication statusPublished - 31 Jan 2022

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