Collective spin modes in monodimensional magnonic crystals consisting of dipolarly coupled nanowires
- 26 February 2007
- journal article
- conference paper
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (9) , 092503
Abstract
Magnetization dynamics of dipolarly coupled nanowire arrays has been studied by Brillouin light scattering. Measurements performed in uniformly magnetized wires as a function of the transferred wave vector demonstrated the existence of several discrete collective modes, propagating through the structure with a periodic dispersion curve encompassing several Brillouin zones relative to the artificial spatial periodicity. This experimental evidence has been quantitatively explained by a theoretical model which permits the calculation of the dispersion relation for collective modes in patterned arrays through the numerical solution of an eigenvalue problem for an integral operator.Keywords
This publication has 9 references indexed in Scilit:
- Spinwaves in Laterally Confined Magnetic Structures2007
- Normal mode splitting in interacting arrays of cylindrical permalloy dotsJournal of Applied Physics, 2006
- Spin-wave eigenmodes of an infinite thin film with periodically modulated exchange bias fieldApplied Physics Letters, 2006
- Fabrication of large area nanomagnetsNanotechnology, 2004
- Collective magnetostatic modes on a one-dimensional array of ferromagnetic stripesPhysical Review B, 2004
- Spin waves in periodic magnetic structures—magnonic crystalsJournal of Magnetism and Magnetic Materials, 2001
- Spin Dynamics in Confined Magnetic Structures I2001
- Brillouin light scattering from quantized spin waves in micron-size magnetic wiresPhysical Review B, 1999
- Trends in brillouin scattering: Studies of opaque materials, supported films, and central modes1982