A physical explanation of the Brillouin light scattering Stokes/anti-Stokes intensity asymmetry of spin modes in thin magnetic multilayers is presented. The study is firstly performed on a single ferromagnetic film and then is extended to the case of ferro- and antiferromagnetically coupled multilayers, including the case of geometric asymmetry. The ellipticity of both the acoustical and optical spin modes is studied. An excellent agreement is found when comparing the prediction of our model with a set of experimental Brillouin light scattering spectra in Fe/Cr and Fe/Cu multilayers. -- Presentazione poster by R. Zivieri - Conferenza internazionale
Stokes-anti-Stokes Brillouin intensity asymmetry of spin modes in ferromagnetic multilayers -- Presentazione poster by R. Zivieri - Conferenza internazionale
ZIVIERI, Roberto;VAVASSORI, Paolo;GIOVANNINI, Loris;NIZZOLI, Fabrizio;
2001
Abstract
A physical explanation of the Brillouin light scattering Stokes/anti-Stokes intensity asymmetry of spin modes in thin magnetic multilayers is presented. The study is firstly performed on a single ferromagnetic film and then is extended to the case of ferro- and antiferromagnetically coupled multilayers, including the case of geometric asymmetry. The ellipticity of both the acoustical and optical spin modes is studied. An excellent agreement is found when comparing the prediction of our model with a set of experimental Brillouin light scattering spectra in Fe/Cr and Fe/Cu multilayers. -- Presentazione poster by R. Zivieri - Conferenza internazionaleI documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
