Nature of Resonant Photoemission in Gd

Journal Article · Sat Aug 01 00:00:00 EDT 1998 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.81.1306· OSTI ID:639843

Mishra, S R; Gammon, W J ^[1]; Cummins, T R; Waddill, G D ^[2]; van der Laan, G ^[3]; Goodman, K W; Tobin, J G ^[4]

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1. Department of Physics, Virginia Commonwealth University, Richmond, Virginia 23284 (United States)
2. Department of Physics, University of Missouri-Rolla, Rolla, Missouri 65401-0249 (United States)
3. Daresbury Laboratory, Warrington WA4 4AD (United Kingdom)
4. Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)

The phenomenon of resonant photoemission happens when, in addition to a direct photoemission channel, a second indirect channel opens up as the absorption threshold of a core level is crossed. A massive increase in emission cross section can occur, but the nature of the process remains clouded. Using novel magnetic linear dichroism in photoelectron spectroscopy experiments and theoretical calculations, we can now clearly demonstrate that temporal matching of the processes as well as energy matching is a requirement for true {open_quotes}resonant photoemission.{close_quotes} {copyright} {ital 1998} {ital The American Physical Society}

• Research Organization: Lawrence Livermore National Laboratory
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 639843
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 6 Vol. 81; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANGULAR DISTRIBUTION
DICHROISM
FERROMAGNETIC MATERIALS
GADOLINIUM
PHOTOELECTRON SPECTROSCOPY
PHOTOEMISSION
RESONANCE
X RADIATION