Structure, Magnetism, and Thermoelectric Properties of Magnesium-Containing Antimonide Zintl Phases SrMgSb and EuMgSb.

Author(s) Tan, W.J.; Liu, Y.T.; Zhu, M.; Zhu, T.J.; Zhao, X.B.; Tao, X.T.; Xia, S.Q.
Journal Inorg Chem
Date Published 2017 Feb 06
Abstract

New Mg-containing antimonide Zintl phases, SrMgSb and EuMgSb, were synthesized from high-temperature solid-state reactions in Ta tubes at 1323 K. Their structures can be viewed as derived from the CaAlSb structure type, which adopt the tetragonal space group I4/acd (No. 142, Z = 8) with the cell parameters of a = 17.5691(14)/17.3442(11) Å and c = 23.399(4)/22.981(3) Å for the Sr- and Eu-containing compounds, respectively. The corresponding thermoelectric properties were probed, which demonstrated high potential of these compounds as new thermoelectrics for their very low thermal conductivity and moderate Seebeck coefficient. Magnetism studies and theoretical calculations were conducted as well to better understand the structure-and-property correlation of these materials.

DOI 10.1021/acs.inorgchem.6b02724
ISSN 1520-510X
Citation Inorg Chem. 2017;56(3):16461654.

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