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Phonon Anomalies in YMnO3 at High Temperature
The reported structural phase transition in YMnO3 from P63cm to P63/mmc space group occurs at 1258 ±14 K. For low temperature phase (space group P63cm) the phonon modes are... -
Magnetic excitations in square lattice 2D Heisenberg Antiferromagnet Sr3Fe2O6.5
Strontium iron oxides belonging to the RP series Srn+1FenO3n+1 (n = 1, 2, ..,1) may offer unique insights into the differences between the magnetic properties of the... -
Magnetic excitations in a candidate magnetic XY analogue of graphene
This proposal is part of our research programme to explore the experimental manifestation of topological properties of magnetic excitations. The honeycomb ferromagnet is... -
Determining Microscopic Origins of the Thermal Hall Effect in Tb2Ti2O7
Studies of thermal Hall effects in insulating materials ascribe its microscopic origins to charge-neutral bosonic carriers generated by non-zero Berry curvature in the... -
Magnon dispersion in the polar ferrimagnet BaCaFe4O7
Polar or non-centrosymmetric ferri(-o)magnets offer a plethora of potential technological devices;the inherent magnetoelectric effect can underpin both pyroelectric or...