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We investigated static and dynamic magnetoelectric properties of single crystalline BaSrCoZnFe11AlO22 which is a room-temperature multiferroic with Y-type hexaferrite crystal structureTHz and Raman spectra reveal an electrically active spin wave (electromagnon) below 300 K at ≈1.2 THz. We show that the electromagnon is activated due to the magnetostriction mechanism involving spin vibrations along the hexagonal axis.
Description
Electromagnon in THz spectra of BaSrCoZnFe11AlO22.
Contact person: Filip Kadlec