Abstract
Energy dispersive high-pressure powder X-ray experiments have been performed for MnTe 2 up to a pressure of 20 GPa. MnTe 2 undergoes a discontinuous transformation from the cubic pyrite type structure to the orthorhombic marcasite type structure at 7.0±0.5 GPa upon increasing pressure. The transformation is accompanied by a large reduction in the specific volume ( ΔV/ V=0.18) which probably reflects different magnetic properties of the two modifications of MnTe 2.
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