Journal of Solid State Chemistry p. 40 - 46 (1988)
Update date:2022-08-11
Topics:
Takizawa, H.
Sato, T.
Endo, T.
Shimada, M.
MnGe and CoGe with the cubic B20 structure were synthesized at 4-5. 5 GPa and 600-1000 degree C for 1-3 hr using the belt-type high-pressure apparatus. Both MnGe and CoGe are antiferromagnetic with Neel temperatures of 197 and 120 K, respectively. One expects an electron transfer of 0. 7 electron from germanium to transition metal in these compounds. The anomalous temperature dependences of the electrical resistivity, the thermoelectric power, and the magnetic susceptibility of MnGe and CoGe are due to a 'temperature-induced local moment. '
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