title: Structure, Magnetism, and Thermoelectric Properties of Magnesium-Containing Antimonide Zintl Phases Sr14MgSb11and Eu14MgSb11.
abstract: New Mg-containing antimonide Zintl phases, Sr14MgSb11and Eu14MgSb11, were synthesized from high-temperature solid-state reactions in Ta tubes at 1323 K. Their structures can be viewed as derived from the Ca14AlSb11structure type, which adopt the tetragonal space group I41/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.
authors.affiliation: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University , Jinan, ShanDong 250100, China.
authors.forename: Wen-Jie
authors.initials: WJ
authors.lastname: Tan
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Yin-Tu
authors.initials: YT
authors.lastname: Liu
authors.affiliation: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University , Jinan, ShanDong 250100, China.
authors.forename: Min
authors.initials: M
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Tie-Jun
authors.initials: TJ
authors.lastname: Zhu
authors.affiliation: State Key Laboratory of Silicon Materials, School of Materials Science and Engineering, Zhejiang University , Hangzhou 310027, China.
authors.forename: Xin-Bing
authors.initials: XB
authors.lastname: Zhao
authors.affiliation: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University , Jinan, ShanDong 250100, China.
authors.forename: Xu-Tang
authors.initials: XT
authors.lastname: Tao
authors.affiliation: State Key Laboratory of Crystal Materials, Institute of Crystal Materials, Shandong University , Jinan, ShanDong 250100, China.
authors.forename: Sheng-Qing
authors.identifier: http://orcid.org/0000-0002-6199-2491
authors.initials: SQ
authors.lastname: Xia