4.3 Article

A detailed analysis of the Raman spectra in superconducting boron doped nanocrystalline diamond

Journal

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
Volume 249, Issue 12, Pages 2656-2659

Publisher

WILEY-V C H VERLAG GMBH
DOI: 10.1002/pssb.201200461

Keywords

boron doping; diamond; MPCVD; Raman spectroscopy

Funding

  1. ERC [ERC-259374-Sylo]
  2. New Szechenyi Plan [TAMOP-4.2.2.B-10/1.2010-0009]

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The light scattering properties of superconducting (Tc?similar to 3.8?K) heavily boron doped nanocrystalline diamond has been investigated by Raman spectroscopy using visible excitations. Fano type interference of the zone-center phonon line and the electronic continuum was identified. Lineshape analysis reveals Fano lineshapes with a significant asymmetry (q similar to-2). An anomalous wavelength dependence and small value of the Raman scattering amplitude is observed in agreement with previous studies. (C) 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

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