Published March 22, 2013 | Version v1
Journal article Metadata-only

VUV light induced valence degeneration in Sm over-layer on HOPG

Creators

  • 1. Hiroshima Synchrotron Radiation Center, Hiroshima University, Higashi-hiroshima (Japan)
  • 2. Technical center, Hiroshima University Higashi-hiroshima (Japan)
  • 3. Technical research center, Mazda Motor Corporation, Aki-gun, Hiroshima (Japan)

Description

Systematic investigation of the influence of vacuum ultraviolet (VUV) irradiation on the valence degeneration in a Sm over-layer on a HOPG substrate was performed using in-situ photoemission spectroscopy (XPS, UPS, and ARPES) for the Sm coverage regime of 0.05-3.6 Å. This investigation confirmed that VUV irradiation-induced degeneration of divalent Sm exerts a more profound effect than Sm contamination during photoemission spectroscopy even under UHV. We found that the charge transfer occurs mainly from divalent Sm to the HOPG surface.

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/425/13/132007

Additional details

Identifiers

DOI
10.1088/1742-6596/425/13/132007;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
425
Journal Issue
13
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
11. international conference on synchrotron radiation instrumentation
Acronym
SRI 2012
Dates
9-13 Jul 2012
Place
Lyon (France)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
44119485
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
FAR ULTRAVIOLET RADIATION; IRRADIATION; LAYERS; PHOTOEMISSION; SAMARIUM; SURFACES; SYNCHROTRON RADIATION SOURCES; VALENCE; X-RAY PHOTOELECTRON SPECTROSCOPY
Descriptors DEC
ELECTROMAGNETIC RADIATION; ELECTRON SPECTROSCOPY; ELEMENTS; EMISSION; METALS; PHOTOELECTRON SPECTROSCOPY; RADIATION SOURCES; RADIATIONS; RARE EARTHS; SECONDARY EMISSION; SPECTROSCOPY; ULTRAVIOLET RADIATION