Lattice dynamics and structure of GeTe, SnTe and PbTe. Issue 7 (12th December 2012)

• Record Type: Journal Article
• Authors: Bauer Pereira, Paula; Sergueev, Ilya; Gorsse, Stéphane; Dadda, Jayaram; Müller, Eckhard; Hermann, Raphaël P.
• Is Part Of: Physica status solidi. Volume 250:Issue 7(2013:Jul.)
• Page Start: 1300
• Page End: 1307
• Publication Date: 2012-12-12
• Subjects: Solid state physics -- Periodicals; Solids -- Periodicals; Atomic structure -- Periodicals; 530.41
• DOI: 10.1002/pssb.201248412
• Languages: English
• ISSNs: 0370-1972

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>The lattice dynamics in the IV–VI compounds GeTe, SnTe and PbTe were studied by ¹²⁵Te and ¹¹⁹Sn nuclear inelastic scattering and the obtained partial density of phonon states were compared with published theoretical calculations. The phase purity and structure were characterized by high energy X‐ray diffraction. The effect of the atomic arrangement, rhombohedral for GeTe and cubic for SnTe and PbTe, is visible in the density of phonon states. Vibrational properties are found to be in good agreement with available calculated data and the softer character of the NaCl‐type structures in comparison with the rhombohedral GeTe is confirmed.</p> </abstract>