Advanced optical and magneto-optical recording techniques: a review

Abstract

Optical data storage is advancing rapidly as we move forward in the 21st Century.

Current-induced spin-orbit torques in ferromagnetic and antiferromagnetic systems

“…Ferrimagnetic films were once widely used as recording media in bubble memories (Bobeck et al, 1975) and magneto-optic memories (Jenkins et al, 2003). Applications included both insulating garnets (Nielsen, 1976) and amorphous rare-earth 3d transition-metal alloys (Buschow, 1984).…”

Advanced Materials and Device Architectures for Magnetooptical Spatial Light Modulators

“…The spectral and composition dependence of MO effects and their intensities provide characteristic signatures on the electromagnetic (EM) waves or electronic and spin structure of materials [6] This makes them suitable for various analytical chemical methods such as visible or near-infrared magnetooptical spectroscopy [7], [8], [9] x-ray magnetic circular dichroism (XMCD) [10], [11], [12] Brillouin light spectroscopy (BLS) [13] in addition to applications such as optical isolators [14], [15], [16] , circulators [17], [18], [19] , spatial light modulators [20], [21], [22] , polarized microscopy [23], [24], [25] , sensing/imaging systems [26], [27], [28] , data storage [29], [30], [31], [32] and growing field of spintronics [33], [34], [35] .…”

Micromagnetic simulation of exchange coupled ferri-/ferromagnetic heterostructures

“…Ferrimagnetic materials have been widely used as magneto-optical recording media [1,2] and provide great potential for future devices in sensor technology and magnetic recording. Interest in ferrimagnetic materials has been renewed by experiments revealing all-optical switching of the magnetization [3–5] and the building of heterostructures leading to giant exchange bias [6] .…”