Magnetic order of MnGe under pressure
MnGe is an helical magnet of the same B20 structure as MnSi, but much less studied due to its difficult synthesis. Recent measurements show that it combines a higher value of the Neel temperature (170K) and ordered moment (2.5 µB) to a very small helical period (38 A at low temperature), yielding the larger Topological Hall effect of the B20 family. In contrast with MnSi, recent band calculations on MnGe suggest a stability of the Mn moment up to high pressures, then a transition towards a semi metallic state. We propose to study evolution of the magnetic structure of MnGe under pressure.
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I. MIREBEAU; DEUTSCH Maxime; FERNANDEZ DIAZ Maria Teresa; Thomas C. Hansen and MAKAROVA Olga. (2013). Magnetic order of MnGe under pressure. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-31-2288
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