• thermoelectric power of different phases and states of silicon at high pressure

    جزئیات بیشتر مقاله
    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
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     the thermoelectric properties of silicon in its high-pressure and metastable (upon decompression) phases in the pressure range up to ∼25 gpa were investigated. experimental data were obtained using designed high-pressure cells with sintered diamond anvils. band-structure calculations based on density functional theory were performed to explain the thermoelectric properties. in particular, it has been established that the nonnegligible positive values of the thermoelectric power s found for the high-pressure “metal” phases of silicon may be well explained by sd electron scattering. qualitative agreement between the experimental data and the results of the calculations has been achieved for the known silicon polymorphs named si-iii, si-v, and si-xi.

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