Papers by Author: J. Serrano

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Authors: J. Serrano, J. Strempfer, M. Cardona, M. Schwoerer-Böhning, H. Requardt, M. Lorenzen, B. Stojetz, P. Pavone, Wolfgang J. Choyke
Authors: Dieter Strauch, B. Dorner, A.A. Ivanov, M. Krisch, J. Serrano, A. Bosak, Wolfgang J. Choyke, B. Stojetz, Michael Malorny
Abstract: Preliminary results for the phonon dispersion curves of hexagonal 4H-SiC from experimental inelastic neutron (INS) and X-ray scattering (IXS) are reported and contrasted with those of cubic 3C-SiC and silicon. The experimental frequencies and scattering intensities are in excellent agreement with those from first-principles calculations using density-functional methods. The relative merits of the two experimental techniques and aspects of the density functional perturbation theory and the so-called frozen phonon method for the determination of the basic phonon properties are briefly outlined.
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