Thermoelectric Power in Ce Systems with Unstable Valence

Thermoelectric Power in Ce Systems with Unstable Valence

In this paper, we report on a few exemplary tests of the applicability of analysis based on the interconfiguration fluctuation model (ICF) for a description of the temperature dependence of the thermoelectric power, <i>S</i>(<i>T</i>). The examples include a series of alloys:...

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Main Author: Tomasz Toliński
Format: Article
Language:English
Published: MDPI AG 2021-09-01
Series:Metals
Subjects:
thermoelectric power
fluctuating valence
Ce compounds
Online Access:https://www.mdpi.com/2075-4701/11/9/1475
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spelling doaj-4bc01f41df9b4ba796cf35118e0c0ed52021-09-26T00:41:57ZengMDPI AGMetals2075-47012021-09-01111475147510.3390/met11091475Thermoelectric Power in Ce Systems with Unstable ValenceTomasz Toliński0Institute of Molecular Physics, Polish Academy of Sciences, Smoluchowskiego 17, 60-179 Poznań, PolandIn this paper, we report on a few exemplary tests of the applicability of analysis based on the interconfiguration fluctuation model (ICF) for a description of the temperature dependence of the thermoelectric power, <i>S</i>(<i>T</i>). The examples include a series of alloys: CeNi<sub>2</sub>(Si<sub>1−y</sub>Ge<sub>y</sub>)<sub>2</sub>, Ce(Ni<sub>1−x</sub>Cu<sub>x</sub>)<sub>2</sub>Si<sub>2</sub>, and the fluctuating valence (FV) compound CeNi<sub>4</sub>Ga. The two series develop from CeNi<sub>2</sub>Si<sub>2</sub> being the FV system, where the f states occupation increases progressively with the Ge or Cu substitution. We find here that the ICF model parameters are of similar magnitude both for the analysis of the temperature dependence of the magnetic susceptibility and thermoelectric power. The ICF-type model appears to be a powerful tool for the analysis of <i>S</i>(<i>T</i>) dependences in Ce-based FV compounds and alloys.https://www.mdpi.com/2075-4701/11/9/1475thermoelectric powerfluctuating valenceCe compounds
collection DOAJ
language English
format Article
sources DOAJ
author Tomasz Toliński
spellingShingle Tomasz Toliński
Thermoelectric Power in Ce Systems with Unstable Valence
Metals
thermoelectric power
fluctuating valence
Ce compounds
author_facet Tomasz Toliński
author_sort Tomasz Toliński
title Thermoelectric Power in Ce Systems with Unstable Valence
title_short Thermoelectric Power in Ce Systems with Unstable Valence
title_full Thermoelectric Power in Ce Systems with Unstable Valence
title_fullStr Thermoelectric Power in Ce Systems with Unstable Valence
title_full_unstemmed Thermoelectric Power in Ce Systems with Unstable Valence
title_sort thermoelectric power in ce systems with unstable valence
publisher MDPI AG
series Metals
issn 2075-4701
publishDate 2021-09-01
description In this paper, we report on a few exemplary tests of the applicability of analysis based on the interconfiguration fluctuation model (ICF) for a description of the temperature dependence of the thermoelectric power, <i>S</i>(<i>T</i>). The examples include a series of alloys: CeNi<sub>2</sub>(Si<sub>1−y</sub>Ge<sub>y</sub>)<sub>2</sub>, Ce(Ni<sub>1−x</sub>Cu<sub>x</sub>)<sub>2</sub>Si<sub>2</sub>, and the fluctuating valence (FV) compound CeNi<sub>4</sub>Ga. The two series develop from CeNi<sub>2</sub>Si<sub>2</sub> being the FV system, where the f states occupation increases progressively with the Ge or Cu substitution. We find here that the ICF model parameters are of similar magnitude both for the analysis of the temperature dependence of the magnetic susceptibility and thermoelectric power. The ICF-type model appears to be a powerful tool for the analysis of <i>S</i>(<i>T</i>) dependences in Ce-based FV compounds and alloys.
topic thermoelectric power
fluctuating valence
Ce compounds
url https://www.mdpi.com/2075-4701/11/9/1475
work_keys_str_mv AT tomasztolinski thermoelectricpowerincesystemswithunstablevalence
_version_ 1716870004506361856

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