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    Half-metallic perovskite superlattices with colossal thermoelectric figure of merit

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    Half-metallic perovskite superlattices with colossal thermoelectric figure of merit.pdf
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    Type
    Article
    Authors
    Upadhyay Kahaly, M.
    Ozdogan, K.
    Schwingenschlögl, Udo cc
    KAUST Department
    Computational Physics and Materials Science (CPMS)
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2013-05-09
    Online Publication Date
    2013-05-09
    Print Publication Date
    2013
    Permanent link to this record
    http://hdl.handle.net/10754/315758
    
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    Abstract
    Nowadays heavy experimental efforts are focussed on doped oxide thermoelectrics to increase the thermopower and thermoelectric performance. We propose a high thermoelectric figure of merit for half-metallic SrTi1−xCoxO3 (x = 0, 0.125, 0.25, 0.375, and 0.5) in a superlattice with SrTiO3, which is stable at high temperatures and in an oxygen environment. The maximal value of Z hardly depends on the doping, while the temperature at which the maximum occurs increases with the Co concentration. The easy tunability from being an insulator to a half-metal under substitutional doping combined with the colossal figure of merit opens up great potential in the emerging field of spin-caloritronics.
    Citation
    Kahaly MU, Ozdogan K, Schwingenschlögl U (2013) Half-metallic perovskite superlattices with colossal thermoelectric figure of merit. J Mater Chem A 1: 8406. doi:10.1039/c3ta11346a.
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Journal of Materials Chemistry A
    DOI
    10.1039/c3ta11346a
    Additional Links
    http://xlink.rsc.org/?DOI=c3ta11346a
    ae974a485f413a2113503eed53cd6c53
    10.1039/c3ta11346a
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program; Computational Physics and Materials Science (CPMS)

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