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Spin and Energy Analyzed Photoemission: A Feasibility Analysis



Daniel T. Pierce, C Kuyatt, Robert Celotta


New scientific opportunities, particularly for investigation of surface magnetism, will be provided by spin and energy analyzed photoemission. Electron-optical conservation laws and phase space concepts are summarized and applied to determine the feasiblity of an experiment consisting of a photoemitter in a magnetic field, a photoelectron energy analyzer and an electron spin analyzer. For the example of photoemission from a Ni crystal using He I resonance radiation and typical parameters for the energy and spin analyzers, a final signal count rate of approximately 220 counts/s is calculated. Ways to increase the count rate by orders of magnitude are described. In particular, a new experimental configuration is suggested which may avoid the large reduction in count rate caused by the magnetic field.
Review of Scientific Instruments


Pierce, D. , Kuyatt, C. and Celotta, R. (1979), Spin and Energy Analyzed Photoemission: A Feasibility Analysis, Review of Scientific Instruments (Accessed April 21, 2024)
Created November 1, 1979, Updated February 19, 2017