Work

Giant Faraday Rotation in Metal-Fluoride Nanogranular Films

Year: 2018

Type: article

Abstract: Magneto-optical Faraday effect is widely applied in optical devices and is indispensable for optical communications and advanced information technology. However, the bismuth garnet Bi-YIG is only the Faraday material since 1972. Here we introduce (Fe, FeCo)-(Al-,Y-fluoride) nanogranular films exhibiting giant Faraday effect, 40 times larger than Bi-YIG. These films have a nanocomposite structure, in which nanometer-sized Fe, FeCo ferromagnetic granules are dispersed in a Al,Y-fluoride matrix.

Source: Scientific Reports

DOI: 10.1038/s41598-018-23128-5

Authors: N. Kobayashi, K. Ikeda, Bo Gu, S. Takahashi, H. Masumoto, S. Maekawa

Institutions: Research Institute for Electromagnetic Materials, Japan Atomic Energy Agency, Advanced Science Research Center, Tohoku University, Institute for Materials Research, Tohoku University, Frontier Research Institute for Interdisciplinary Sciences, Tohoku University

Language: English

Topic: Magneto-Optical Properties and Applications

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,690

Funder: Japan Society for the Promotion of Science

Awards: Spin Mechanics, Research for fluid flow driven by spin current injection, Development of new multifunctional materials by magnetic metal-ferroelectric nano-composite thin films, Development of multifunctional materials by structure control of nanogranular films, G7627573086, Coupling between spin and mechanical rotation in spintronics, Development of nanogranular transparent ferromagnetic material with new magneto-optical effect

OpenAlex ID: W2806484331

FWCI: 1.338

Cites: 32

Cited by: 35

Related to: 10