Synthesis and Characterization of Ag2MnSnS4, a New Diamond‐like Semiconductor
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2018-08-02 |
| Journal | Zeitschrift für anorganische und allgemeine Chemie |
| Authors | Daniel Friedrich, Sebastian Greil, Theresa Block, Lukas Heletta, Rainer Pöttgen |
| Institutions | University of Regensburg, University of Münster |
| Citations | 12 |
Abstract
Section titled “Abstract”Phase pure Ag 2 MnSnS 4 was synthesized from the elements using standard high‐temperature solid‐state methods. Its crystal structure was solved from single‐crystal X‐ray diffraction data collected from a pseudo‐merohedrally twinned crystal as well as by Rietveld refinement of X‐ray powder diffraction data. Ag 2 MnSnS 4 crystallizes in the monoclinic space group Pc (no. 7) with the unit cell parameters a = 6.651(1), b = 6.943(1), c = 10.536(2) Å, β = 129.15(1)°, V = 337.3(1) Å 3 , and Z = 2. The tetrahedraly compound crystallizes in a superstructure of the wurtzite type and the tetrahedra volumes are in good agreement with the model for diamond‐related compounds derived from the wurtzite structure type. The red semiconductor Ag 2 MnSnS 4 has an optical bandgap of E g = 2.0 eV and is stable up to its peritectic decomposition temperature of approximately 700 °C. Ag 2 MnSnS 4 is a Curie-Weiss paramagnet with an experimental magnetic moment of μ exp = 5.4(1) μ B per manganese atom. Antiferromagnetic ordering is detected at a Néel temperature of T N = 8.8(1) K. 119 Sn Mößbauer spectra at 78 K underline the single tetrahedrally coordinated Sn IV site ( δ = 1.34(1) mm · s -1 ). The 6 K spectrum (magnetically ordered state) reveals a small transferred magnetic hyperfine field of 1.02(1) T.
Tech Support
Section titled “Tech Support”Original Source
Section titled “Original Source”References
Section titled “References”- 1966 - The Chemistry of Diamond‐Like Semiconductors