Some Transport Properties of Conduction Electrons in n-Type CdS

Autor:	Yukio Onodera
Rok vydání:	1966
Předmět:	Materials science Condensed matter physics Scattering Screening effect General Physics and Astronomy Thermal conduction Condensed Matter::Materials Science symbols.namesake Condensed Matter::Superconductivity Seebeck coefficient symbols Nernst equation Scattering theory Phonon drag Nernst effect
Zdroj:	Journal of the Physical Society of Japan. 21:1643-1654
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.21.1643
Popis:	The Hall mobility, the Seebeck and the Nernst coefficient have been measured in the temperature range from about 100°K to 350°K to obtain information about the scattering mechanisms of the conduction electrons in n -type CdS. The tensor components of the transverse Nernst coefficient are derived according to Herring's method to interpret the experimental results. The temperature dependences of the Hall mobility and the Seebeck coefficient are almost the same with those reported by many authors, except the saturation tendency observed in the phonon drag part of the Seebeck coefficient. Positive phonon drag contribution is found in the transverse Nernst coefficient, contrary to the expectation from the piezoelectric scattering theory of the conduction electrons. This inconsistency is attributed to the screening effect by the conduction electrons rather than to the existence of additional scattering mechanisms due e.g. , to the deformation potential.
Databáze:	OpenAIRE
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