Brillouin light scattering ~BLS! measurements were performed for 17-120-Å-thick Cu/Ni/Cu/Si~001! films.A monotonic dependence of the frequency of the uniform mode on an in-plane magnetic field H was observedboth on increasing and on decreasing H in the range 2-14 kOe, suggesting the absence of a metastablecollinear ground state. Further investigation by magneto-optical vector magnetometry in an unconventionalcanted-field geometry provided evidence for a domain structure where the magnetization is canted. Spin-wavecalculations confirm the absence of stable collinear configurations
Absence of stable collinear configurations in Ni(001) ultrathin films: canted domain structure as ground state
G. Gubbiotti;G. Carlotti;M. G. Pini;P. Politi;A. Rettori;
2002
Abstract
Brillouin light scattering ~BLS! measurements were performed for 17-120-Å-thick Cu/Ni/Cu/Si~001! films.A monotonic dependence of the frequency of the uniform mode on an in-plane magnetic field H was observedboth on increasing and on decreasing H in the range 2-14 kOe, suggesting the absence of a metastablecollinear ground state. Further investigation by magneto-optical vector magnetometry in an unconventionalcanted-field geometry provided evidence for a domain structure where the magnetization is canted. Spin-wavecalculations confirm the absence of stable collinear configurationsFile in questo prodotto:
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Descrizione: Absence of stable collinear configurations in Ni(001) ultrathin films: canted domain structure as ground state
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