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Cobalt germanide

Chemical compound From Wikipedia, the free encyclopedia

Cobalt germanide
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Cobalt germanide (CoGe) is an intermetallic compound, a germanide of cobalt.

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Cubic CoGe crystals (space group P213, cP8, a = 0.4631 nm) can be produced by processing a mixture of Co and Ge powders at a pressure of 4 GPa and a temperature of 800–1000 °C for 1 to 3 hours. They have no inversion center, and are therefore helical, with right-hand and left-handed chiralities. The cubic CoGe is metastable, and converts into a monoclinic phase upon subsequent heating to 600 °C at ambient pressure.[1]

Cubic CoGe is an antiferromagnet with a transition temperature Tc of 132 K.[1]

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