Single crystallization of Ba 8Al xSi 46-x clathrate by using the flux Czochralski method

Yusuke Nakakohara, Naoki Mugita, Yuya Nagatomo, Makoto Saisho, Teruaki Motooka, Ryo Teranishi, Shinji Munetoh

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    3 Citations (Scopus)

    Abstract

    We have synthesized single crystalline Ba 8Al xSi x-46 clathrates by using the flux Czochralski (CZ) method with Al-rich melt. The specific electric resistivity, the Seebeck coefficient and the power factor of single crystalline Ba 8Al 14Si 32 were 0.73 mΩcm, 70.0μV/K and 6.8×10 -4V 2/K 2Ωm, respectively. These values are higher than that of single crystalline Ba 8Al 12Si 34clathrate because of the reduced carrier concentration. It is indicated that Al contents and the carrier concentration of single crystalline Ba 8Al xSi 46-x can be controlled by using the flux Czochralski method.

    Original languageEnglish
    Title of host publicationEnergy Harvesting - Recent Advances in Materials, Devices and Applications
    Pages131-135
    Number of pages5
    DOIs
    Publication statusPublished - 2012
    Event2011 MRS Spring Meeting - San Francisco, CA, United States
    Duration: Apr 25 2011Apr 29 2011

    Publication series

    NameMaterials Research Society Symposium Proceedings
    Volume1325
    ISSN (Print)0272-9172

    Other

    Other2011 MRS Spring Meeting
    Country/TerritoryUnited States
    CitySan Francisco, CA
    Period4/25/114/29/11

    All Science Journal Classification (ASJC) codes

    • General Materials Science
    • Condensed Matter Physics
    • Mechanics of Materials
    • Mechanical Engineering

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