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Heat Capacity study of $β$-FeSi$_2$ single crystals

Sher Alam·T. Nagai·Y. Matsui
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Abstract

Heat Capacity of needle-like [length=5mm, diameter=1 mm] $β$-FeSi$_{2}$ single crystal, grown by chemical vapor transport has been measured. Two anomalies are found, a broad deviation centered around 160 K and a clear deviation at a temperature of 255 K approximately. We have attempted to relate these to the anomalies previously reported in the case of the resistivity data. The Transient Thermoelectric Effect [TTE] results lead us to the inference that the system under goes from single carrier system to at least two carrier system at 220 K-our heat capacity results seem to provide further independent evidence for this transition in this system.

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Sher Alam, T. Nagai, Y. Matsui. 2006-01-31. Heat Capacity study of $β$-FeSi$_2$ single crystals. https://doi.org/10.1016/j.physleta.2006.03.041

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