We develop the theory of Brillouin light scattering (BLS) from spin-wave modes in ferromagnetic nanospheres, within a framework that incorporates the spatial variation of the optical fields within the sphere. Our recent theory of exchange-dipole spin-wave modes of the sphere provides us with eigenvectors. When properly normalized, these eigenvectors allow calculation of the absolute cross section of various modes which contribute to BLS spectrum. We then present explicit calculation of the BLS spectrum associated with the first few dipole-exchange spin-wave modes with emphasis on their relative intensity.

Brillouin zone

Spin wave

Source

Cite

Citations (0)

Laser Induced Forces Between Metallic Nanospheres; The Role of Collective Plasmon Resonances

Bulletin of the American Physical Society (2007)

Ping Chu Douglas Mills

Source

Cite

Citations (0)

Anomalously large $g$-factor of single atoms adsorbed on a metal substrate

Bulletin of the American Physical Society (2012)

Jens Wiebe Alexander A. Khajetoorians Bruno Chilian R. Wiesendanger Samir Lounis

Factor (programming language)

Source

Cite

Citations (4)

Itinerant Nature of Atom-Magnetization Excitation by Tunneling Electrons

arXiv (Cornell University) (2010)

Alexander A. Khajetoorians Samir Lounis Bruno Chilian A. T. Costa Lihui Zhou

We have performed single-atom magnetization curve (SAMC) measurements and inelastic scanning tunneling spectroscopy (ISTS) on individual Fe atoms on a Cu(111) surface. The SAMCs show a broad distribution of magnetic moments with $\unit[3.5]{\mu_{\rm B}}$ being the mean value. ISTS reveals a magnetization excitation with a lifetime of $\unit[200]{fsec}$ which decreases by a factor of two upon application of a magnetic field of $\unit[12]{T}$. The experimental observations are quantitatively explained by the decay of the magnetization excitation into Stoner modes of the itinerant electron system as shown by newly developed theoretical modeling.

10.48550/arxiv.1010.1284

Cite

Citations (0)

Light Scattering in Solids V

Topics in applied physics (1989)

B. Jusserand Douglas Mills James C. Tsang

10.1007/bfb0051985

Cite

Citations (730)

Nonlinear Optics: Basic Concepts

Physics Today (1999)

Douglas Mills R. R. Freeman