Long-lived spin waves in a metallic antiferromagnet
G. Poelchen,
J. Hellwig,
M. Peters
et al.
Abstract:Collective spin excitations in magnetically ordered crystals, called magnons or spin waves, can serve as carriers in novel spintronic devices with ultralow energy consumption. The generation of well-detectable spin flows requires long lifetimes of high-frequency magnons. In general, the lifetime of spin waves in a metal is substantially reduced due to a strong coupling of magnons to the Stoner continuum. This makes metals unattractive for use as components for magnonic devices. Here, we present the metallic an… Show more
“…In particular, in the discussed class of materials there are some antiferromagnets, like CeCo 2 P 2 with a rather high temperature of the magnetic order (T N = 440 K). 21,22 Since magnetism in most of the rare earth compounds with a centrosymmetric crystal structure is mainly driven by the RKKY interaction, these systems can be promising to develop magnetic skyrmions without a strong Dzyaloshinskii-Moriya interaction.…”
The discovery of a square magnetic-skyrmion lattice in GdRu2Si2, with the smallest so far found skyrmion size and without a geometrically frustrated lattice, has attracted significant attention. In this work,...
“…In particular, in the discussed class of materials there are some antiferromagnets, like CeCo 2 P 2 with a rather high temperature of the magnetic order (T N = 440 K). 21,22 Since magnetism in most of the rare earth compounds with a centrosymmetric crystal structure is mainly driven by the RKKY interaction, these systems can be promising to develop magnetic skyrmions without a strong Dzyaloshinskii-Moriya interaction.…”
The discovery of a square magnetic-skyrmion lattice in GdRu2Si2, with the smallest so far found skyrmion size and without a geometrically frustrated lattice, has attracted significant attention. In this work,...
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