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Träfflista för sökning "WFRF:(Gangopadhyay A.) srt2:(2005-2009)"

Sökning: WFRF:(Gangopadhyay A.) > (2005-2009)

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1.
  • Petrache, C. M., et al. (författare)
  • Triaxiality at high spins in Nd nuclei
  • 2006
  • Ingår i: Physica Scripta. - 0031-8949. ; T125, s. 212-213
  • Tidskriftsartikel (refereegranskat)abstract
    • The level structure of Nd-140(80) has been established up to spin 48 by in-beam gamma-ray spectroscopy using the Zr-96(Ca-48, 4n) reaction. High-fold gamma-ray coincidences were measured with the EUROBALL spectrometer. Twelve new rotational bands have been discovered at high spins, showing the change from a spherical single-particle behaviour at low spins to a deformed regime with stable triaxiality at high spins. Possible configurations are assigned to the observed bands on the basis of configuration-dependent cranked Nilsson-Strutinsky calculations.
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2.
  • Gangopadhyay, S., et al. (författare)
  • C-60 submonolayers on the Si(111)-(7 x 7) surface: Does a mixture of physisorbed and chemisorbed states exist?
  • 2009
  • Ingår i: Surface Science. - : Elsevier BV. - 0039-6028. ; 603:18, s. 2896-2901
  • Tidskriftsartikel (refereegranskat)abstract
    • We have carried out a combined X-ray photoelectron spectroscopy (XPS), ultraviolet photoelectron spectroscopy(UPS), and scanning tunnelling microscopy (STM) study of the C-60-Si(1 1 1) interaction where the XPS/UPS spectrometer and STM are integrated on a single UHV system. This enables a direct comparison of the XPS/UPS spectra with the STM data and eliminates any uncertainty in C-60 coverage measurements. X-ray standing wave measurements and density functional theory calculations have been used to support and interpret the results of the XPS/UPS/STM experiments. Our data conclusively rule out models of C-60 adsorption which involve a mixture of physisorbed and chemisorbed molecules [K. Sakamoto, et al., Phys. Rev. B 60 (1999) 2579]. Instead, we find that all molecules, up to 1 monolayer coverage, bond to the surface via Si-C bonds which are predominantly of covalent character. (C) 2009 Elsevier B.V. All rights reserved.
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