158 citations · 326 across the 5 of their papers we have counts for
5 papers
Spin excitations in the skymion host Cu2OSeO3
G S Tucker, J S White, J Romhányi +10
We have used inelastic neutron scattering to measure the magnetic excitation spectrum along the high-symmetry directions of the first Brillouin zone of the magnetic skyrmion hostin…
Hall effect of triplons in a dimerized quantum magnet
Judit Romhányi, Karlo Penc, R. Ganesh
The celebrated Shastry Sutherland model has a gapped dimer singlet ground state. The material SrCu(BO) serves as a good realization of this model, upto small anisotropi…
Establishing the fundamental magnetic interactions in the chiral skyrmionic Mott insulator Cu2OSeO3 by terahertz electron spin resonance
M. Ozerov, J. Romhányi, M. Belesi +6
The recent discovery of skyrmions in CuOSeO has established a new platform to create and manipulate skyrmionic spin textures. We use high-field electron spin resonance (ESR…
Multiboson spin-wave theory for Ba2CoGe2O7, a spin-3/2 easy-plane Neel antiferromagnet with strong single-ion anisotropy
Judit Romhányi, Karlo Penc
We consider the square-lattice antiferromagnetic Heisenberg Hamiltonian extended with a single-ion axial anisotropy term as a minimal model for the multiferroic Ba2CoGe2O7. Develop…
Spin-stretching modes in anisotropic magnets: spin-wave excitations in the multiferroic Ba2CoGe2O7
K. Penc, J. Romhányi, T. Rõõm +10
We studied spin excitations of the multiferroic Ba2CoGe2O7 in high magnetic fields up to 33 T. In the electron spin resonance and far infrared absorption spectra we found several s…