## Spin wave quantization and dynamic coupling in micron-size circular magnetic dots

• We report on the observation of spin wave quantization in square arrays of micron size circular magnetic Ni80Fe20 dots by means of Brillouin light scattering spectroscopy. For a large wavevector interval several discrete, dispersionless modes with a frequency splitting of up to 2.5 GHz were observed. The modes are identified as magnetostatic surface spin waves laterally quantized due to in- plane confinement in each single dot. The frequencies of the lowest observed modes decrease with increasing distance between the dots, thus indicating an essential dynamic magnetic dipole interaction between the dots with small interdot distances.

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Verfasserangaben: Burkard Hillebrands urn:nbn:de:hbz:386-kluedo-8789 Preprint Englisch 1999 1999 Technische Universität Kaiserslautern 23.08.1999 Brillouin light scattering spectroscopy ; magnetostatic surface spin waves; spin wave quantization Fachbereich Physik 5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik Standard gemäß KLUEDO-Leitlinien vor dem 27.05.2011

$Rev: 13581$