Magnetism and Magnetooptical Effects in Ce–Fe Oxides

Bolduc, M.; Taussig, Alexander R.; Rajamani, Amuda; Dionne, Gerald F.; Ross, Caroline A.

doi:10.1109/tmag.2006.880514

Cited by 14 publications

(5 citation statements)

References 10 publications

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“…Apart from this, the outstanding magneto-optical properties of YIG have been used in nonreciprocal devices in optical communications 13,14,15,16,17,18,19 . To further increase its gyrotropic response, YIGs have been doped with rare earths and, in particular, with cerium 20,21,22,23 . In view of this, untangling the individual contributions of Ce and Fe may provide further clues to a better understanding of the nature of the magneto-optical enhancement in doped YIG and the character of the assigned electronic transitions 24,25 .…”

Section: Walther-meißner-institut Bayerische Akademie Der Wissenschamentioning

confidence: 99%

Untangling the contributions of cerium and iron to the magnetism of Ce-doped yttrium iron garnet

Casals

Espínola

Cichelero

et al. 2016

Applied Physics Letters

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The remarkable magnetic properties of yttrium iron garnets (YIGs) underpin the use of these materials in a broad scope of spintronic and photonic applications. In particular, the addition of rare earth metals in the structure enhances to a great extent the magneto-optical activity, which is beneficial for the development of nonreciprocal optical devices. Exploiting the wavelength selectivity of magneto-optics, we have identified a range of frequencies at which one can unravel the individual contributions to the magnetism and gyrotropic response arising from cerium and iron. We envision that this outcome may pave the way to further experiments to assess quantitatively the effect on the optical properties of rare earth incorporation into YIG.

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Section: Walther-meißner-institut Bayerische Akademie Der Wissenschamentioning

confidence: 99%

Untangling the contributions of cerium and iron to the magnetism of Ce-doped yttrium iron garnet

Casals

Espínola

Cichelero

et al. 2016

Applied Physics Letters

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“…The temperature dependence of magnetization in saturation could be described by M s ͑T͒ =M s ͑0͓͒1−b͑T / T c ͒ leaves a small net magnetic moment and modest Curie temperature. 18,19 In summary, we fabricated the Nd: BiFeO 3 / Bi 2 FeMnO 6 bilayered films on Pt/ Ti/ SiO 2 / Si substrate by PLD method. The film showed good ferroelectric properties with P r and E c values of 54 C / cm 2 and 237 kV/cm, respectively.…”

mentioning

confidence: 99%

Room temperature multiferroic properties of Nd:BiFeO3/Bi2FeMnO6 bilayered films

Zhao

Kimura

Cheng

et al. 2009

Applied Physics Letters

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“…The value of

of some MO materials at the 1550 nm wavelength can be up to ten times greater than that of the MO material that we used in our design [ 8 , 22 , 23 ]. However, such materials require an external magnetizing element to keep its saturated magnetic state.…”

Section: Scattering Matrix Analysis Of the Devicementioning

confidence: 99%

Magnetless Optical Circulator Based on an Iron Garnet with Reduced Magnetization Saturation

2021

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A three-port circulator for optical communication systems comprising a photonic crystal slab made of a magneto-optical material in which an magnetizing element is not required to keep its magnetic domains aligned is suggested for the first time. By maximizing the incorporation of europium to its molecular formula, the magneto-optical material can remain in the saturated magnetic state even in the absence of an external DC magnetic field. Two- and three-dimensional simulations of the device performed with full-wave electromagnetic solvers based on the finite element method demonstrate that, at the 1550 nm wavelength, the insertion loss, isolation, and reflection levels are equal to or better than −1 dB, −14 dB, and −20 dB, respectively. Since its operation does not require an electromagnet or a permanent magnet, the suggested circulator is much more compact, being able to reach footprints in the range of three orders of magnitude smaller, when compared to other circulator designs referred to in the literature and the presented results can be useful for the design of other nonreciprocal devices with reduced dimensions for optical communication systems.

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Magnetism and Magnetooptical Effects in Ce–Fe Oxides

Cited by 14 publications

References 10 publications

Untangling the contributions of cerium and iron to the magnetism of Ce-doped yttrium iron garnet

Untangling the contributions of cerium and iron to the magnetism of Ce-doped yttrium iron garnet

Room temperature multiferroic properties of Nd:BiFeO3/Bi2FeMnO6 bilayered films

Magnetless Optical Circulator Based on an Iron Garnet with Reduced Magnetization Saturation

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