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Chiral magnons in altermagnetic RuO2
Libor Šmejkal, Alberto Marmodoro, Kyo-Hoon Ahn +8
Magnons in ferromagnets have one chirality, and typically are in the GHz range and have a quadratic dispersion near the zero wavevector. In contrast, magnons in antiferromagnets ar…
Axion insulators protected by C2T and their K-theory invariants and material realization
Rafael Gonzalez-Hernandez, Carlos Pinilla, Bernardo Uribe
Axion insulators are generally understood as magnetic topological insulators whose Chern-Simons axion coupling term is quantized and equal to . Inversion and time reversal, or t…
On quasi-nodal spheres and the spin Hall effect: the case of YH3 and CaTe
Rafael Gonzalez-Hernandez, Carlos Pinilla, Bernardo Uribe
Band inversion is a known feature in a wide range of topological insulators characterized by a change of orbital type around a high-symmetry point close to the Fermi level. In some…
Anomalous Hall conductivity control in MnNiN antiperovskite by epitaxial strain along the kagome plane
D. Torres-Amaris, A. Bautista-Hernandez, Rafael González-Hernández +2
Antiferromagnetic manganese-based nitride antiperovskites, such as MnNiN, hold a triangular frustrated magnetic ordering over their kagome lattice formed by the Mn atoms along…