High-Pressure Synthesis and Electronic Structure of a New Superconducting Strontium Germanide (SrGe3) Containing Ge2 Dumbbells

High-Pressure Synthesis and Electronic Structure of a New Superconducting Strontium Germanide (SrGe3) Containing Ge2 Dumbbells

We obtained a new strontium germanide (SrGe3) by high-pressure and high-temperature synthesis. It was prepared at 13 GPa and 1100 °C. The space group and cell constants are I4/mmm (No. 139), a = 7.7800(8) Å, c = 12.0561(13) Å, and V = 729.74(17) Å3. SrGe3 crystallizes in the CaSi3 structure composed...

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Veröffentlicht in:Inorganic chemistry 2015-08, Vol.54 (15), p.7433-7437
Hauptverfasser: Nishikawa, Takuya, Fukuoka, Hiroshi, Inumaru, Kei
Format: Artikel
Sprache:eng
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Zusammenfassung:We obtained a new strontium germanide (SrGe3) by high-pressure and high-temperature synthesis. It was prepared at 13 GPa and 1100 °C. The space group and cell constants are I4/mmm (No. 139), a = 7.7800(8) Å, c = 12.0561(13) Å, and V = 729.74(17) Å3. SrGe3 crystallizes in the CaSi3 structure composed of Ge–Ge dumbbells and Sr2+ ions. SrGe3 is a type II superconductor with a transition temperature of 6.0 K.
ISSN:0020-1669
1520-510X
DOI:10.1021/acs.inorgchem.5b00989