Gradual pressure-induced change in the magnetic structure of the noncollinear antiferromagnet Mn3Ge
Sukhanov AS, Singh S, Caron L, Hansen T, Hoser A, Kumar , Borrmann H, Fitch A, Devi P, Manna K, Felser C, Inosov DS (2018)
Publication Type: Journal article
Publication year: 2018
Journal
Book Volume: 97
Article Number: 214402
Journal Issue: 21
DOI: 10.1103/PhysRevB.97.214402
Abstract
By means of powder neutron diffraction we investigate changes in the magnetic structure of the coplanar noncollinear antiferromagnet Mn3Ge caused by an application of hydrostatic pressure up to 5 GPa. At ambient conditions the kagomé layers of Mn atoms in Mn3Ge order in a triangular 120-spin structure. Under high pressure the spins acquire a uniform out-of-plane canting, gradually transforming the magnetic texture to a noncoplanar configuration. With increasing pressure the canted structure fully transforms into the collinear ferromagnetic one. We observed that magnetic order is accompanied by a noticeable magnetoelastic effect, namely, spontaneous magnetostriction. The latter induces an in-plane magnetostrain of the hexagonal unit cell at ambient pressure and flips to an out-of-plane strain at high pressures in accordance with the change of the magnetic structure.
Involved external institutions
Max-Planck-Institut für Chemische Physik fester Stoffe (MPI CPfS) / Max Planck Institute for Chemical Physics of Solids
Germany (DE)
Institute Laue-Langevin (ILL)
France (FR)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Germany (DE)
European Synchrotron Radiation Facility (ESRF)
France (FR)
Technische Universität Dresden
Germany (DE)
Germany (DE)
Institute Laue-Langevin (ILL)
France (FR)
Helmholtz-Zentrum Berlin für Materialien und Energie (HZB)
Germany (DE)
European Synchrotron Radiation Facility (ESRF)
France (FR)
Technische Universität Dresden
Germany (DE)
How to cite
APA:
Sukhanov, A.S., Singh, S., Caron, L., Hansen, T., Hoser, A., Kumar, .,... Inosov, D.S. (2018). Gradual pressure-induced change in the magnetic structure of the noncollinear antiferromagnet Mn3Ge. Physical Review B, 97(21). https://doi.org/10.1103/PhysRevB.97.214402
MLA:
Sukhanov, A. S., et al. "Gradual pressure-induced change in the magnetic structure of the noncollinear antiferromagnet Mn3Ge." Physical Review B 97.21 (2018).
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