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Vibrational spectroscopy of indium-doped Pb0.9Mn0.1Te alloy

Identifieur interne : 001067 ( Russie/Analysis ); précédent : 001066; suivant : 001068

Vibrational spectroscopy of indium-doped Pb0.9Mn0.1Te alloy

Auteurs : RBID : Pascal:98-0020600

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English descriptors

Abstract

Raman scattering and far-infrared reflection spectra of 0.5 at.% In doped Pb0.9Mn0.1Te single crystal at temperatures between 10 and 300 K are presented. The infrared spectra have been fitted using a modified plasmon-phonon interaction model with an additional oscillator (at about 122 cm-1 ) representing a local In-impurity mode. Phonons in this mixed crystal exhibit intermediate mode behavior. The plasma frequency decreases on cooling from 300 to 25 K and increases sharply between 20 and 10K. The results of galvanomagnetic measurements are also presented.

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Pascal:98-0020600

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<term>Doped materials</term>
<term>Electron transfer</term>
<term>Experimental study</term>
<term>Hall effect</term>
<term>Impurity states</term>
<term>Indium additions</term>
<term>Infrared spectra</term>
<term>Inorganic compounds</term>
<term>Lattice vibrations</term>
<term>Lead tellurides</term>
<term>Manganese tellurides</term>
<term>Metastable states</term>
<term>Oscillator strengths</term>
<term>Phonon mode</term>
<term>Phonon-plasmon interactions</term>
<term>Plasma frequency</term>
<term>Raman spectra</term>
<term>Reflection spectrum</term>
<term>Semiconductor materials</term>
<term>Temperature dependence</term>
<term>Ternary compounds</term>
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<term>Vibration réseau</term>
<term>Mode phonon</term>
<term>Spectre Raman</term>
<term>Spectre réflexion</term>
<term>Spectre IR</term>
<term>Interaction phonon plasmon</term>
<term>Force oscillateur</term>
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<term>Addition indium</term>
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<term>Etat métastable</term>
<term>Transfert électron</term>
<term>Matériau semiconducteur</term>
<term>Plomb tellurure</term>
<term>Manganèse tellurure</term>
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<term>7145G</term>
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<term>Pb0,9Mn0,1Te:In</term>
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<div type="abstract" xml:lang="en">Raman scattering and far-infrared reflection spectra of 0.5 at.% In doped Pb
<sub>0.9</sub>
Mn
<sub>0.1</sub>
Te single crystal at temperatures between 10 and 300 K are presented. The infrared spectra have been fitted using a modified plasmon-phonon interaction model with an additional oscillator (at about 122 cm
<sup>-1</sup>
) representing a local In-impurity mode. Phonons in this mixed crystal exhibit intermediate mode behavior. The plasma frequency decreases on cooling from 300 to 25 K and increases sharply between 20 and 10K. The results of galvanomagnetic measurements are also presented.</div>
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<s0>Raman scattering and far-infrared reflection spectra of 0.5 at.% In doped Pb
<sub>0.9</sub>
Mn
<sub>0.1</sub>
Te single crystal at temperatures between 10 and 300 K are presented. The infrared spectra have been fitted using a modified plasmon-phonon interaction model with an additional oscillator (at about 122 cm
<sup>-1</sup>
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