Reinvestigation the Thermal and Electrical Transport Properties of Tl₇Sb₂

Abstract:

The authors examined the thermal and electrical transport properties of Tl₇Sb₂ at temperatures ranging from room temperature to 400 K. The crystal system of Tl₇Sb₂ is cubic with the lattice parameter a = 1.16053 nm and the space group is Im3m. The polycrystalline samples were prepared by melting stoichiometric amounts of thallium and antimony. Although, usually the thermal conductivity of thallium compounds is very low (<1 Wm^-1K^-1), that of Tl₇Sb₂ was relatively high (~13 Wm^-1K^-1 at room temperature). This is because of the large electronic contribution to the thermal conductivity.

• Periodical: Advanced Materials Research (Volume 802)
• Pages: 284-288
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.802.284
• Online since: September 2013
• Authors: Anek Charoenphakdee, Adul Harnwangmuang, Tosawat Seetawan, Chesta Ruttanapun, Vittaya Amornkitbamrung, Ken Kurosaki, Shinsuke Yamanaka
• Keywords: Electrical Resistivity, Seebeck Coefficient, Thermal Conductivity (TC), Tl₇Sb₂

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