Inelastic X-Ray Scattering Studies of Phonon Dispersion in PbTe and (Pb,Cd)Te Solid Solution

• Authors: R. Kuna , R. Minikayev , M. Trzyna , K. Gas , A. Bosak , A. Szczerbakow , S. Petit , J. Łażewski , W. Szuszkiewicz
• Languages of publication: EN

Abstracts

EN

PbTe and its solid solution (Pb,Cd)Te containing 2% of CdTe and PbTe grown by self-selecting vapour growth technique were investigated by inelastic X-ray scattering using synchrotron radiation. The ID28 beamline at ESRF with the incident photon energy of 17794 eV and the energy resolution of 3 meV was applied for that purpose. The measurements were performed at room temperature along [001]-type high symmetry direction in the Brillouin zone. In spite of a very low energy of phonon branches they can be determined by inelastic X-ray scattering with a high accuracy. The transversal acoustic phonon dispersion obtained by inelastic X-ray scattering corresponds well to those resulting from inelastic neutron scattering measurements and ab initio calculations. Apart from expected structures corresponding to the bulk phonons an additional scattering related to the crystal surface properties was observed in the inelastic X-ray scattering spectra. The analysis performed with the use of secondary ion mass spectroscopy technique demonstrated a presence of a thin oxide layer at sample surfaces.

Keywords

EN

63.20.D-; 68.43.-h; 68.49.Sf

Discipline

• 68.43.-h: Chemisorption/physisorption: adsorbates on surfaces
• 63.20.D-: Phonon states and bands, normal modes, and phonon dispersion
• 68.49.Sf: Ion scattering from surfaces (charge transfer, sputtering, SIMS)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2016
• Volume: 130
• Issue: 5
• Pages: 1251-1254

Dates

published

2016-11

Contributors

author

R. Kuna

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

R. Minikayev

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

M. Trzyna

• Faculty of Mathematics and Natural Sciences, University of Rzeszów, S. Pigonia 1, PL-35310 Rzeszów, Poland

author

K. Gas

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland
• Institute of Experimental Physics, University of Wrocław, Pl. M. Borna 9, PL-50204 Wrocław, Poland

author

A. Bosak

• ESFR - The European Synchrotron CS40220, F-38043 Grenoble Cedex 9, France

author

A. Szczerbakow

• Institute of Physics, Polish Academy of Sciences, Aleja Lotnikow 32/46, PL-02668 Warsaw, Poland

author

S. Petit

• Laboratoire Léon Brillouin, CEA-CNRS, CEA Saclay, F-91191 Gif-sur-Yvette Cedex, France

author

J. Łażewski

• Institute of Nuclear Physics, Polish Academy of Sciences, E. Radzikowskiego 152, PL-31342, Kraków, Poland

author

W. Szuszkiewicz

• Faculty of Mathematics and Natural Sciences, University of Rzeszów, S. Pigonia 1, PL-35310 Rzeszów, Poland

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Identifiers

DOI

10.12693/APhysPolA.130.1251