Experimental Investigation of Nondipole Effects in Photoemission at the Advanced Light Source

Document Type

Article

Publication Date

8-2005

Publication Title

Radiation physics and chemistry

Publisher

Elsevier

Volume

73

Issue

6

First page number:

311

Last page number:

327

Abstract

Breakdowns in the dipole approximation in the soft-X-ray photon-energy range (hv < 5 keV) were first observed 30 years ago and have been studied theoretically for many years. However, only recently their significance at low energies has been appreciated when advances in gas-phase-photoemission experiments using synchrotron radiation began to highlight numerous examples of significant nondipole effects at photon energies as low as tens of eV. In a previous publication [Hemmers et al., 2004a. Radiat. Phys. Chem. 70, 123–147], we presented a description of the recent advances made in the investigation of nondipole effects in photoionization from an experimental perspective. In this article, we report the results obtained by the X-ray atomic and molecular spectroscopy (XAMS) group at the Advanced Light Source, over the last 10 years, on the limits of the dipole approximation, probed by angle-resolved photoelectron spectroscopy for atoms and molecules in gas phase.

Controlled Subject

Angular distribution (Nuclear physics); Dipole moments; Photoemission

Disciplines

Atomic, Molecular and Optical Physics | Inorganic Chemistry | Nuclear | Physical Chemistry

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

Rights

IN COPYRIGHT. For more information about this rights statement, please visit http://rightsstatements.org/vocab/InC/1.0/

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