Journalartikel

Nonisothermal transport properties of alpha-Ag2+delta S: Partial thermopowers of electrons and ions, the Soret effect and heats of transport


AutorenlisteKorte, C; Janek, J

Jahr der Veröffentlichung1997

Seiten623-637

ZeitschriftJournal of Physics and Chemistry of Solids

Bandnummer58

Heftnummer4

ISSN0022-3697

DOI Linkhttps://doi.org/10.1016/S0022-3697(96)00172-2

VerlagElsevier


Abstract
The ionic and electronic partial thermopowers and the Soret effect of alpha-Ag2+deltaS (low temperature phase) have been studied as functions of temperature and deviation from stoichiometry delta by means of a nonisothermal galvanic cell. From a combination of these data with results from additional measurements of the partial entropy of silver metal in alpha-Ag2+deltaS, the heat of transport of silver metal is determined. The measured transport properties are discussed in respect to the defect structure and isothermal transport properties of alpha-Ag2+deltaS and information on the individual heats of transport of the mobile point defects is extracted. We observe a strong composition dependence of Q(Ag)* which can be explained within our formal analysis. The electronic properties can be interpreted within the model of a non-degenerate electron gas. The scattering factor of electronic defects in the statistical description of thermopower is equivalent to the electronic heat of transport in the phenomenological description.



Autoren/Herausgeber




Zitierstile

Harvard-ZitierstilKorte, C. and Janek, J. (1997) Nonisothermal transport properties of alpha-Ag2+delta S: Partial thermopowers of electrons and ions, the Soret effect and heats of transport, Journal of Physics and Chemistry of Solids, 58(4), pp. 623-637. https://doi.org/10.1016/S0022-3697(96)00172-2

APA-ZitierstilKorte, C., & Janek, J. (1997). Nonisothermal transport properties of alpha-Ag2+delta S: Partial thermopowers of electrons and ions, the Soret effect and heats of transport. Journal of Physics and Chemistry of Solids. 58(4), 623-637. https://doi.org/10.1016/S0022-3697(96)00172-2


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