Ultrafast photomagnetic recording in a dielectric medium using anisotropic ions effective gilber damping

摘要

A recording medium comprising a dielectric magnetic layer, the dielectric magnetic layer comprising anisotropic ions having a difference in a single ion contribution to magnetic anisotropy (ΔK/ion) between a ground state and an excited state of said anisotropic ions equal to at least 0.1 cm⁻¹ (0.0124 meV/ion) at 20° C. (68° F.), wherein the effective Gilbert damping (α) of said dielectric magnetic layer is equal to at least 0.01.