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Träfflista för sökning "(WFRF:(Eberhardt B.)) srt2:(2010-2014) srt2:(2011)"

Sökning: (WFRF:(Eberhardt B.)) srt2:(2010-2014) > (2011)

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1.
  • Gates, J. M., et al. (författare)
  • First Superheavy Element Experiments at the GSI Recoil Separator TASCA: The Production and Decay of Element 114 in the 244Pu(48Ca,3-4n) Reaction
  • 2011
  • Ingår i: Physical Review C (Nuclear Physics). - 0556-2813. ; 83:5
  • Tidskriftsartikel (refereegranskat)abstract
    • Experiments with the new recoil separator, Transactinide Separator and Chemistry Apparatus (TASCA), at the GSI were performed by using beams of Ca-48 to irradiate targets of Pb206-208, which led to the production of No252-254 isotopes. These studies allowed for evaluation of the performance of TASCA when coupled to a new detector and electronics system. By following these studies, the isotopes of element 114 ((288-291)114) were produced in irradiations of Pu-244 targets with Ca-48 beams at compound nucleus excitation energies around 41.7 and 37.5 MeV, demonstrating TASCA's ability to perform experiments with picobarn-level cross sections. A total of 15 decay chains were observed and were assigned to the decay of 288-291114. A new a-decay branch in (281)Ds was observed, leading to the new nucleus (277)Hs.
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2.
  • King, P.D.C., et al. (författare)
  • Large Tunable Rashba Spin Splitting of a Two-Dimensional Electron Gas in Bi2Se3
  • 2011
  • Ingår i: Physical Review Letters. - : aps physics. ; 107:9
  • Tidskriftsartikel (refereegranskat)abstract
    • We report a Rashba spin splitting of a two-dimensional electron gas in the topological insulator Bi2Se3 from angle-resolved photoemission spectroscopy. We further demonstrate its electrostatic control, and show that spin splittings can be achieved which are at least an order-of-magnitude larger than in other semiconductors. Together these results show promise for the miniaturization of spintronic devices to the nanoscale and their operation at room temperature.
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3.
  • Öhrwall, Gunnar, et al. (författare)
  • A new energy and angle resolving electron spectrometer - First results
  • 2011
  • Ingår i: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048 .- 1873-2526. ; 183:1-3, s. 125-131
  • Tidskriftsartikel (refereegranskat)abstract
    • A new energy and angle resolved analyzer for photoelectron spectroscopy is described. This analyzer is based on combining an advanced focusing electron lens system with time-of-flight measurements. A position sensitive detector gives time and position for the electron events. From this information the kinetic energy and start direction are obtained through a transformation procedure, giving both a large luminosity and a very high energy resolution. The instrument analyses the angles of emission of the electrons in a cone with 30 degrees opening angle and simulations show that extremely high energy and angular resolution can be achieved simultaneously. We report the first results from this instrument, obtained at the PM-3 beam line at BESSY (Berlin, Germany). This analyzer opens up new possibilities for angular resolved electron spectroscopy, band-mapping and other applications.
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  • Resultat 1-3 av 3

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