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92 papers · 1 filter
Electronic excitations in the Shastry-Sutherland compound SrCu(BO)
Tariq Leinen, Ola K. Forslund, Eugenio Paris +13
SrCu2(BO3)2 (SCBO) is a paradigmatic realization of the Shastry-Sutherland model, hosting geometrically frustrated spin dimers and a variety of quantum magnetic phases and phenomen…
Field-Induced Magnon Decay, Magnon Shadows, and Roton-like Excitations in the Honeycomb Antiferromagnet YbBr
J. A. Hernández, A. A. Eberharter, M. Schuler +9
Although the search for quantum many-body phenomena in magnetic materials has a strong focus on highly frustrated systems, even unfrustrated quantum magnets show a multitude of unc…
Magnetostructural Coupling at the Néel point in YNiO3 Single Crystals
Dariusz J. Gawryluk, Y. Maximilian Klein, Rebecca Scatena +11
The recent discovery of superconductivity in infinite layer thin films and bulk Ruddlesden-Popper nickelates has stimulated the investigation of other predicted properties of these…
Fingerprints of supersymmetric spin and charge dynamics observed by inelastic neutron scattering
Björn Wehinger, Franco T. Lisandrini, Noam Kestin +12
Supersymmetry is an algebraic property of a quantum Hamiltonian that, by giving every boson a fermionic superpartner and vice versa, may underpin physics beyond the Standard Model.…
Dipolar spin-waves and tunable band gap at the Dirac points in the 2D magnet ErBr3
C. Wessler, B. Roessli, K. W. Krämer +4
Topological magnon insulators constitute a growing field of research for their potential use as information carriers without heat dissipation. We report an experimental and theoret…
Thermal Evolution of Dirac Magnons in the Honeycomb Ferromagnet CrBr
S. E. Nikitin, B. Fåk, K. W. Krämer +4
CrBr is an excellent realization of the two-dimensional honeycomb ferromagnet, which offers a bosonic equivalent of graphene with Dirac magnons and topological character. We pe…