Details

Autor(en) / Beteiligte

• Hu, C.-L.
• Magaraggia, R.
• Yuan, H.-Y.
• Chang, C. S.
• Kostylev, M.
• Tripathy, D.
• Adeyeye, A. O.
• Stamps, R. L.

Titel

Field tunable localization of spin waves in antidot arrays

Ist Teil von

• Applied physics letters, 2011-06, Vol.98 (26), p.262508-262508-3

Ort / Verlag

American Institute of Physics

Erscheinungsjahr

2011

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• We show that magnetic spin wave resonance modes in an antidot patterned array are sensitive to small changes in the magnetic configuration near dots, resulting in strong localization effects as the field is increased. Frequencies measured using ferromagnetic resonance from an antidot array patterned from a NiFe/IrMn bilayer are interpreted using micromagnetic calculations, and it is shown that the observed field dependence of the resonance response can be attributed to strong interdot localization of spin waves. This field tunable localization is created by stray fields produced by magnetic poles at the dot surfaces.