The interaction of thermal phonons with conduction electrons in InSb. Application to heat-pulse spectroscopy
| Autor: | J.P. Maneval, F.R. Ladan, B. Pannetier, D. Huet |
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| Rok vydání: | 1976 |
| Předmět: |
Materials science
Condensed matter physics Phonon business.industry Indium antimonide Fermi surface Electron Condensed Matter::Mesoscopic Systems and Quantum Hall Effect Thermal conduction Condensed Matter::Materials Science chemistry.chemical_compound Semiconductor chemistry Condensed Matter::Superconductivity Condensed Matter::Strongly Correlated Electrons Atomic physics Absorption (electromagnetic radiation) Spectroscopy business |
| Zdroj: | Journal de Physique. 37:521-536 |
| ISSN: | 0302-0738 |
| DOI: | 10.1051/jphys:01976003705052100 |
| Popis: | High frequency ballistic phonons were radiated by the heat pulse method (To 4.2 K) into degenerate n-type indium antimonide crystals. We first review the relevant aspects of the electronphonon interaction : cut-off for phonon wavevectors larger than twice the Fermi radius (q > 2 kF), selective coupling of the longitudinal modes and screening effects. Then, we report original extensive measurements of phonon absorption as a function of the electron concentration in the semiconductor. The Fermi sphere acts as a high-pass filter, which enables phonon spectroscopy with no adjustable parameters. As a result, the frequency distribution of a heat pulse could be determined in a detailed fashion. |
| Databáze: | OpenAIRE |
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