Electron correlation effects and magneto-optical properties of yttrium iron garnet

Hiroki Nakashima; Abdul-Muizz Pradipto; Toru Akiyama; Tomonori Ito; Kohji Nakamura

doi:10.1063/1.5130147

AIP Advances (Apr 2020)

Electron correlation effects and magneto-optical properties of yttrium iron garnet

Hiroki Nakashima,
Abdul-Muizz Pradipto,
Toru Akiyama,
Tomonori Ito,
Kohji Nakamura

Affiliations

Hiroki Nakashima: Department of Physics Engineering, Mie University, Tsu, Mie 514-8507, Japan
Abdul-Muizz Pradipto: Department of Physics Engineering, Mie University, Tsu, Mie 514-8507, Japan
Toru Akiyama: Department of Physics Engineering, Mie University, Tsu, Mie 514-8507, Japan
Tomonori Ito: Department of Physics Engineering, Mie University, Tsu, Mie 514-8507, Japan
Kohji Nakamura: Department of Physics Engineering, Mie University, Tsu, Mie 514-8507, Japan

DOI: https://doi.org/10.1063/1.5130147
Journal volume & issue: Vol. 10, no. 4
pp. 045029 – 045029-6

Abstract

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The electronic structure, magnetic, optical and magneto-optical properties of yttrium iron garnet (YIG) were investigated by using first-principles calculations with Hubbard energy correction for the treatment of the strong electron correlation. The effective on-site Coulomb interaction parameters Ueff for YIG were determined from the constrained density functional theory within a linear response theory. Our results find a hybridization between the O-2p and Fe-3d orbitals. We also observe the crucial role of the electron correlation of the Fe-3d orbitals according to the magneto-optical properties of YIG.

Published in AIP Advances

ISSN: 2158-3226 (Online)
Publisher: AIP Publishing LLC
Country of publisher: United States
LCC subjects: Science: Physics
Website: http://aipadvances.aip.org/

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