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Universality Class Transition Across the Helimagnetic Ordering in Te-doped Cu$_2$OSeO$_3$

Autor: Ferguson, A. J., Vás, M., Vella, E. J., Pervez, Md. F., Gilbert, E. P., Ulrich, C., Yick, S., Söhnel, T.

Cu$_2$OSeO$_3$ is a multiferroic insulating chiral magnet which exhibits various magnetic orderings at different conditions. The positions of these magnetic phase transitions are known to be sensitive to chemical substitution. Here, we present a univ

Externí odkaz: http://arxiv.org/abs/2410.08489

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Scaling behaviour of the helical and skyrmion phases of Cu2OSeO3 determined by single crystal small angle neutron scattering

Autor: Flores, J. Sauceda, Rov, R., O'Brien, J., Yick, S., Pervez, Md. F., Spasovski, M., Vella, J., Booth, N., Gilbert, E. P., Tretiakov, Oleg A., Söhnel, T., Ulrich, C.

Skyrmions are topologically protected quantum objects at the nanometre scale. They form perpendicular to an applied magnetic field at a certain temperature and arrange themselves in a typically hexagonal lattice. Using small angle neutron scattering

Externí odkaz: http://arxiv.org/abs/2303.02653

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Reduced crystal symmetry as origin of the ferroelectric polarization within the incommensurate magnetic phase of TbMn2O5

Autor: Narayanan, N., Graham, P. J., Rovillain, P., O'Brien, J., Bertinshaw, J., Yick, S., Hester, J., Maljuk, A., Souptel, D., Büchner, B., Argyriou, D., Ulrich, C.

The precise crystal symmetry and hence the emergence of the electric polarization still remains an open question in the multiferroic materials $R$Mn$_2$O$_5$ ($R$ = rare-earth, Bi, Y). While previous diffraction studies have indicated that $R$Mn$_2$O

Externí odkaz: http://arxiv.org/abs/2109.05164

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