Synthesis of a cubic Ge3N4 phase at high pressures and temperatures

Synthesis of a cubic Ge3N4 phase at high pressures and temperatures

The two known phases of germanium nitride (Ge3N4) have hexagonal and trigonal symmetries and consist of three-dimensional networks of corner-connected Ge–N tetrahedra. A new cubic spinel phase (space-group Fd3m, a0=8.3 Å, Z=8, ρ=6.36 g/cm3) containing Ge–N octahedra and tetrahedra in a 2:1 ratio was...

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Veröffentlicht in:The Journal of chemical physics 1999-09, Vol.111 (10), p.4659-4662
Hauptverfasser: Serghiou, G., Miehe, G., Tschauner, O., Zerr, A., Boehler, R.
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container_end_page 4662
container_issue 10
container_start_page 4659
container_title The Journal of chemical physics
container_volume 111
creator Serghiou, G.
Miehe, G.
Tschauner, O.
Zerr, A.
Boehler, R.
description The two known phases of germanium nitride (Ge3N4) have hexagonal and trigonal symmetries and consist of three-dimensional networks of corner-connected Ge–N tetrahedra. A new cubic spinel phase (space-group Fd3m, a0=8.3 Å, Z=8, ρ=6.36 g/cm3) containing Ge–N octahedra and tetrahedra in a 2:1 ratio was synthesized from elemental germanium and molecular nitrogen starting materials in a laser-heated diamond-anvil cell above 14 GPa. This phase is isostructural to the recently discovered cubic spinel phase of Si3N4.
doi_str_mv 10.1063/1.479227
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title Synthesis of a cubic Ge3N4 phase at high pressures and temperatures
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