A new solid solution compound with the Sr21Mn4Sb18 structure type: Sr13Eu8Cd3Mn1Sb18

• Published in: Zeitschrift für Kristallographie. Crystalline materials Vol. 232; no. 7; pp. 593 - 599
• Main Authors: Wille, Elizabeth L. Kunz, Cooley, Joya A., Fettinger, James C., Kazem, Nasrin, Kauzlarich, Susan M.
• Format: Journal Article
• Language: English
• Published: De Gruyter 26.07.2017
• Subjects: magnetic properties; site specific substitution; Zintl phase
• ISSN: 2194-4946; 2196-7105
• DOI: 10.1515/zkri-2016-2034

The title compound with the nominal formula, Sr Eu Cd Mn Sb , was synthesized by Sn-flux. Structure refinement was based on single-crystal X-ray diffractometer data. Employing the exact composition, the formula is Sr Eu Cd Mn Sb for the solid solution Sr Eu Cd Mn Sb . This phase adopts the Sr Mn Sb type structure with site preferences for both Eu and Cd. The structure crystallizes in the monoclinic system in space group 2/ and =4: =18.1522(11), =17.3096(10), =17.7691(10) Å, β=91.9638(8)°, 6632 F values, 216 variables, R1=0.0254 and wR2=0.0563. Site selectivity of the elements in this new compound will be discussed in relationship with the Sr Mn Sb type structure and other related structure types. Temperature dependent magnetic susceptibility data reveal Curie–Weiss paramagnetism with an experimental moment of 19.3 μ /f.u. and a Weiss constant of 0.4 K. Magnetic ordering is seen at low temperatures, with a transition temperature of 3.5 K.