The 79th JSAP Autumn Meeting, 2018

Presentation information

Symposium (Oral)

Symposium » The role of functional oxides in high-frequency devices for IoT

[21p-CE-1~5] The role of functional oxides in high-frequency devices for IoT

Fri. Sep 21, 2018 1:30 PM - 5:25 PM CE (Century Hall)

Hidekazu Tanaka(Osaka University), Osamu Nakagawara(Murata Manufacturing)

1:30 PM - 2:30 PM

[21p-CE-1] Artificial magnetic lattices and applications

Mitsuteru Inoue1 (1.Toyohashi Univ. Tech.)

Keywords:artificial magnetic lattice, magneto-optics, spin wave

The introduction of artificial magnetic structures into magnetic materials can induce novel electromagnetic and spin-wave behavior. Nano- and submicron-meter-scale artificial magnetic lattices (AMLs) can control optical (electromagnetic) waves in magnetophotonic crystals, volumetric magnetic holograms, and labyrinthian magnetic domain structures, and can affect spin waves in magnonic crystals.
In this talk, the fundamental properties of such AMLs, mainly in magnetic garnet films and alloy thin films, are discussed, followed by demonstrations of their applications in optical and spin-wave micro-devices driven by magnetic phase interference: volumetric magneto-optic (MO) hologram memories and three-dimensional MO holographic displays with magnetophotonic crystals; high-speed MO Q-switch micro-chip lasers with iron-garnet films with labyrinthian magnetic domain structures; and highly sensitive magnetic sensors and spin-wave logic circuits with magnonic crystals.
Prospective future spin-wave devices with AMLs will be discussed in the context of the new paradigm of magnonics (electron non-transport electronics), where spin waves play an important role as the information carrier.