Data di Pubblicazione:
2003
Abstract:
Spin-wave frequency discretization has been observed by Brillouin light scattering in an array of tangentially magnetized 800 nm3550 nm Ni81Fe19 rectangular prisms with thicknesses of 30 nm
and dot separations of 200 nm. For a large wave vector interval, several discrete dispersionless modes were observed. The experimental frequencies were compared to those calculated using a
recently developed analytical model for flat uniformly magnetized rectangular prisms. The agreement between the experimental and calculated frequencies is very good. In addition to the
above mentioned modes, a low frequency mode was experimentally detected over a wide range of transferred wave vectors. Finally, the decrease in frequency of the first perpendicular standing
spin-wave mode, observed in the patterned sample with respect to in the continuous film, was successfully reproduced.
and dot separations of 200 nm. For a large wave vector interval, several discrete dispersionless modes were observed. The experimental frequencies were compared to those calculated using a
recently developed analytical model for flat uniformly magnetized rectangular prisms. The agreement between the experimental and calculated frequencies is very good. In addition to the
above mentioned modes, a low frequency mode was experimentally detected over a wide range of transferred wave vectors. Finally, the decrease in frequency of the first perpendicular standing
spin-wave mode, observed in the patterned sample with respect to in the continuous film, was successfully reproduced.
Tipologia CRIS:
01.01 Articolo in rivista
Elenco autori:
Carlotti, Giovanni; Gerardino, Annamaria; Gubbiotti, Gianluca
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