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Thermoelectric properties of perovskites: Sign change of the Seebeck coefficient and high temperature properties

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F07%3A00098459" target="_blank" >RIV/68378271:_____/07:00098459 - isvavai.cz</a>

  • Result on the web

  • DOI - Digital Object Identifier

Alternative languages

  • Result language

    angličtina

  • Original language name

    Thermoelectric properties of perovskites: Sign change of the Seebeck coefficient and high temperature properties

  • Original language description

    The change of the Seebeck coefficient S is exemplified in the LaCoO3 perovskites: a small hole doping result in a large positive Seebeck coefficient, while electron doping give a negative Seebeck coefficient at room temperature. At high temperature, theSeebeck coefficients of LaCoO3 and related compounds decrease to small values close to 20 ? V/K at 800 K due to the spin state transition. On the other hand, in the case of metallic-like samples as electron-doped manganites, the properties can be described up to high T in terms of a band metal. Due to the linear variation of S as a function of T and the almost constant value of r?, the ratio S2/? which is crucial for high temperature applications, increases

  • Czech name

    Termoelektrické vlastnosti perovskitů: změna znaménka Seebeckova jevu a vysokoteplotní vlastnosti

  • Czech description

    The change of the Seebeck coefficient S is exemplified in the LaCoO3 perovskites: a small hole doping result in a large positive Seebeck coefficient, while electron doping give a negative Seebeck coefficient at room temperature. At high temperature, theSeebeck coefficients of LaCoO3 and related compounds decrease to small values close to 20 ? V/K at 800 K due to the spin state transition. On the other hand, in the case of metallic-like samples as electron-doped manganites, the properties can be described up to high T in terms of a band metal. Due to the linear variation of S as a function of T and the almost constant value of r?, the ratio S2/r? which is crucial for high temperature applications, increases

Classification

  • Type

    J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

  • CEP classification

    BM - Solid-state physics and magnetism

  • OECD FORD branch

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Others

  • Publication year

    2007

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Progress in Solid State Chemistry

  • ISSN

    0079-6786

  • e-ISSN

  • Volume of the periodical

    35

  • Issue of the periodical within the volume

    -

  • Country of publishing house

    GB - UNITED KINGDOM

  • Number of pages

    11

  • Pages from-to

    457-467

  • UT code for WoS article

  • EID of the result in the Scopus database