Two ground states in intermixed Mn1-xFexGe compounds
We have synthesized powder Mn1-xFexGe samples within the concentration range of x = [0.0 - 1.0], which are magnetically ordered over the full concentration range. Small angle neutron scattering revealed the helical spin structure with a wavevector, which changes from a maximum |k| -> 2.3 nm-1 for pure MnGe, through its minimum (|k| -> 0) for x = 0.75 to a value of |k| ->0.09 nm-1 for pure FeGe [1]. Furthermore a second magnetic ground state has been revealed for the concentration range x [0.5 - 0.7]. The aim of this proposal is to collate the magnetic phase diagrams (H-T) within this critical concentration range. [1] S. V. Grigoriev, et al., PRL 110, 207201 (2013).
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SIEGFRIED Sven-Arne; ALTYNBAEV Evgeniy; CHERNYSHOV Dmitry; DIADKIN Vadim; S.V. Grigoriev; HONECKER Dirk; LOTT Dieter; MENZEL Dirk; MOSKVIN Evgeny and SCHREYER Andreas. (2014). Two ground states in intermixed Mn1-xFexGe compounds. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-32-802
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