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Strong Fano resonance of oxygen-hydrogen bonds on oblique angle deposited Mg nanoblades

Appl. Phys. Lett. 92, 183112 (2008); doi:10.1063/1.2920442

Published 9 May 2008

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W. M. Hlaing Oo,1 M. D. McCluskey,1 Y. P. He,2 and Y. P. Zhao2
1Department of Physics and Astronomy, Washington State University, Pullman, Washington 99164-2814, USA
2Department of Physics and Astronomy and Nanoscale Science and Engineering Center, University of Georgia, Athens, Georgia 30602, USA
Magnesium hydroxide [Mg(OH)2] thin layers were formed by a chemical reaction between Mg nanoblades and water. Infrared (IR) spectroscopy showed a OH bond-stretching vibrational mode at 3699  cm−1. The assignment was verified by reactions with heavy water, producing OD bonds with the expected isotopic frequency shift. An asymmetric Fano line shape was observed for the OH layer on metallic Mg, while a symmetric Lorentzian (or Bright–Wigner) profile was observed for the OH layer on insulating MgH2. The results indicate that the OH layer on the Mg nanoblades is so thin that the vibrational mode couples to the free-electron continuum of Mg metal. ©2008 American Institute of Physics
History: Received 1 April 2008; accepted 16 April 2008; published 9 May 2008
Permalink: http://link.aip.org/link/?APPLAB/92/183112/1
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KEYWORDS and PACS

Keywords
PACS
  • 78.67.-n
    Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures
  • 78.30.Hv
    Infrared and Raman spectra in nonmetallic inorganics
  • 61.46.-w
    Structure of nanoscale materials
  • 68.55.-a
    Thin film structure and morphology
  • 72.25.-b
    Spin polarized transport
  • YEAR: 2008

PUBLICATION DATA

ISSN:
0003-6951 (print)   1077-3118 (online)
Publisher:
AIP is a member of CrossRef AIP

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