Journal
JOURNAL OF PHYSICS D-APPLIED PHYSICS
Volume 50, Issue 29, Pages -Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1361-6463/aa7573
Keywords
magnonics; skyrmion; spintronics; spin wave; ferromagnetic resonance; Dzyaloshinsky-Moriya interaction; ferrimagnet
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Funding
- Deutsche Forschungsgemeinschaft (DFG) 'Correlated Magnetism: From Frustration to Topology' [SFB 1143, GA 1072/5-1]
- DFG via the Transregio 'From electronic correlations to functionality' [TRR80]
- Swiss National Science Foundation (SNSF) funds magnonics research on skyrmion-hosting materials via the sinergia network 'Nanoskyrmionics' [CRSII5-171003]
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Magnetic materials hosting correlated electrons play an important role for information technology and signal processing. The currently used ferro-, ferri- and antiferromagnetic materials provide microscopic moments (spins) that are mainly collinear. Recently more complex spin structures such as spin helices and cycloids have regained a lot of interest. The interest has been initiated by the discovery of the skyrmion lattice phase in non-centrosymmetric helical magnets. In this review we address how spin helices and skyrmion lattices enrich the microwave characteristics of magnetic materials and give rise to bottom-up magnonic crystals. When discussing perspectives for microwave electronics and magnonics we focus particularly on insulating materials as they avoid eddy current losses, offer low spin-wave damping, and allow for electric field control. Thereby, they further fuel the vision of magnonics operated at low energy consumption.
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