Optical magnetoelectric effect in the polar GaFeO3 ferrimagnet

J. H. Jung; M. Matsubara; T. Arima; J. P. He; Y. Kaneko; Y. Tokura

doi:10.1103/PhysRevLett.93.037403

Optical magnetoelectric effect in the polar GaFeO₃ ferrimagnet

J. H. Jung, M. Matsubara, T. Arima, J. P. He, Y. Kaneko, Y. Tokura

Research output: Contribution to journal › Article › peer-review

112 Citations (Scopus)

Abstract

The optical magnetoelectric (ME) effect in the optical absorption spectra of a polar ferrimagnet GaFeO₃ was analyzed. It was found that the optical ME effect was ∼ 3 × 10^-3 for dipole and spin-forbidden d-d transition bands. It was also observed that the spectral shape of the GaFeO₃ corresponded to the modulation of the absorption band intensity. The results show that the spectral shape also changes sign with the reversal of light propagation relative to the outer product of the spontaneous polarization and magnetization vectors.

Original language	English
Article number	037403
Pages (from-to)	037403-1-037403-4
Journal	Physical review letters
Volume	93
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.93.037403
Publication status	Published - 2004 Jul 16
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy(all)

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AU - Matsubara, M.

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AU - He, J. P.

AU - Kaneko, Y.

AU - Tokura, Y.

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AB - The optical magnetoelectric (ME) effect in the optical absorption spectra of a polar ferrimagnet GaFeO3 was analyzed. It was found that the optical ME effect was ∼ 3 × 10-3 for dipole and spin-forbidden d-d transition bands. It was also observed that the spectral shape of the GaFeO3 corresponded to the modulation of the absorption band intensity. The results show that the spectral shape also changes sign with the reversal of light propagation relative to the outer product of the spontaneous polarization and magnetization vectors.

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