Spin resonance in EuTiO3 probed by time-domain gigahertz ellipsometry

J.L.M. van Mechelen; D. van der Marel; I. Crassee; T. Kolodiazhnyi

doi:10.1103/PhysRevLett.106.217601

Spin resonance in EuTiO₃ probed by time-domain gigahertz ellipsometry

J.L.M. van Mechelen, D. van der Marel, I. Crassee, T. Kolodiazhnyi

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

22 Citations (Scopus)

Abstract

We show an example of a purely magnetic spin resonance in EuTiO₃ and the resulting new record high Faraday rotation of 590°/mm at 1.6 T for 1 cm wavelengths probed by a novel technique of magneto-optical gigahertz time-domain ellipsometry. From our transmission measurements of linear polarized light, we map out the complex index of refraction n=μ in the gigahertz to terahertz range. We observe a strong resonant absorption by magnetic dipole transitions involving the Zeeman split S=7/2 magnetic energy levels of the Eu2⁺ ions, which causes a very large dichroism for circular polarized radiation.

Original language	English
Article number	217601
Number of pages	4
Journal	Physical Review Letters
Volume	106
Issue number	21
DOIs	https://doi.org/10.1103/PhysRevLett.106.217601
Publication status	Published - 25 May 2011
Externally published	Yes

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abstract = "We show an example of a purely magnetic spin resonance in EuTiO3 and the resulting new record high Faraday rotation of 590°/mm at 1.6 T for 1 cm wavelengths probed by a novel technique of magneto-optical gigahertz time-domain ellipsometry. From our transmission measurements of linear polarized light, we map out the complex index of refraction n=μ in the gigahertz to terahertz range. We observe a strong resonant absorption by magnetic dipole transitions involving the Zeeman split S=7/2 magnetic energy levels of the Eu2+ ions, which causes a very large dichroism for circular polarized radiation.",

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AU - Crassee, I.

AU - Kolodiazhnyi, T.

PY - 2011/5/25

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AB - We show an example of a purely magnetic spin resonance in EuTiO3 and the resulting new record high Faraday rotation of 590°/mm at 1.6 T for 1 cm wavelengths probed by a novel technique of magneto-optical gigahertz time-domain ellipsometry. From our transmission measurements of linear polarized light, we map out the complex index of refraction n=μ in the gigahertz to terahertz range. We observe a strong resonant absorption by magnetic dipole transitions involving the Zeeman split S=7/2 magnetic energy levels of the Eu2+ ions, which causes a very large dichroism for circular polarized radiation.

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Spin resonance in EuTiO₃ probed by time-domain gigahertz ellipsometry

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