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Publication Citation: Spin and Energy Analyzed Photoemission: A Feasibility Analysis

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Author(s): Daniel T. Pierce; C Kuyatt; Robert Celotta;
Title: Spin and Energy Analyzed Photoemission: A Feasibility Analysis
Published: November 01, 1979
Abstract: 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.
Citation: Review of Scientific Instruments
Volume: 50
Research Areas: Surface Physics