Pierce, D.
, Girvin, S.
, Unguris, J.
and Celotta, R.
(1981),
Absorbed Current Electron Spin Polarization Detector, Review of Scientific Instruments
(Accessed July 1, 2025)
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Absorbed Current Electron Spin Polarization Detector
Published
Author(s)
, S Girvin, ,
Abstract
The principle of spin analysis by means of measurement of the spin dependent absorption of a polarized electron beam is presented. The spin dependent signal is enhanced relative to the spin averaged signal at an energy near which the secondary yield is unity. Both the collected charge method and the zero-crossing method are described for situations where the polarization can and cannot be reversed. A statistical analysis of the uncertainty in the polarization determination by each method is given. Annealed, evaporated Au films are shown to be suitable for the detecting surface of this spin detector. The figure of merit is derived and found for Au films to be comparable to the very best Mott detectors, but the electron optical acceptance is smaller. The applications for which this simple compact spin detector are especially suited are discussed.Citation
Review of Scientific Instruments
Volume
52
Pub Type
Journals
Citation
Issues
If you have any questions about this publication or are having problems accessing it, please contact [email protected].
Created October 1, 1981, Updated February 19, 2017