Title

Photoelectron Spectroscopy and the Dipole Approximation

Document Type

Article

Publication Date

1996

Publication Title

Synchrotron Radiation News

Publisher

Taylor & Francis

Volume

9

Issue

6

First page number:

40

Last page number:

45

Abstract

As synchrotron radiation users around the world know, photoelectron spectroscopy using either ultraviolet (UV) or X-ray photons is a common technique for studying materials. Photoelectron spectroscopy is a powerful technique because it can directly probe, via the measurement of photoelectron kinetic energies, orbital and band structure in valence and core levels in a wide variety of samples: atoms, molecules, clusters, solids, surfaces and adsorbates. The technique becomes even more powerful when it is performed in an angle-resolved mode, where photoelectrons are distinguished not only by their kinetic energy, but by their direction of emission as well. Determining the probability of electron ejection as a function of angle is an excellent probe of the different quantum-mechanical channels available to any photoemission process, because it is sensitive to phase differences among these channels. As a result, angle-resolved photoemission has been used successfully for many years to provide stringent tests of our understanding of basic physical processes underlying gas-phase and solid-state interactions with radiation, and also as a tool to probe physical and chemical structure in solids and surfaces.

Keywords

Photoelectron spectroscopy; Photoemission

Disciplines

Atomic, Molecular and Optical Physics | Physics

Language

English

Permissions

Use Find in Your Library, contact the author, or use interlibrary loan to garner a copy of the article. Publisher copyright policy allows author to archive post-print (author’s final manuscript). When post-print is available or publisher policy changes, the article will be deposited

Identifier

DOI: 10.1080/08940889608602917

Publisher Citation

Renaud Guillemin, Oliver Hemmers, Dennis W. Lindle, Steven T. Manson, (2006) Experimental investigation of nondipole effects in photoemission at the advanced light source. Radiation Physics and Chemistry 75:12, pages 2258-2274.


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