Weak Antiferromagnet Iron Borate FeBO3. Classical Object for Magnetism and the State of the Art

Овчинников, С. Г.; Rudenko, V. V.; Kazak, N. V.; Édelman, I. S.; Гавричков, В. А.

doi:10.1134/s106377612007016x

Cited by 15 publications

(2 citation statements)

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“…Iron borate (FeBO 3 ) is an antiferromagnet with weak ferromagnetism and easy plane magnetic anisotropy. It has a trigonal (rhombohedral) crystal structure, a high Neel temperature (348 K) and narrow lines of magnetic resonances [28][29][30][31][32][33][34]. Iron borate crystals have two magnetic sublattices.…”

Section: Introductionmentioning

confidence: 99%

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Microwave spin-pumping from an antiferromagnet FeBO₃

Gabrielyan,

Volkov,

Kozlova

et al. 2024

J. Phys. D: Appl. Phys.

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Recently, canted antiferromagnets offer great potential for fundamental research and applications due to their unique properties. The presence of the Dzyaloshinskii-Moriya interaction leads to the existence of a weak ferromagnetic moment at room temperature. We study both theoretically and experimentally microwave spin pumping by the quasi-ferromagnetic mode from a canted easy plane antiferromagnet with weak ferromagnetism FeBO3. The conversion of a microwave signal into the constant voltage is realized using the inverse spin Hall effect in an iron borate/heavy metal heterostructure. We use an additional bias magnetic field to selectively tune the resonance frequency of such a microwave detector over a wide range up to 43.5 GHz with potential sensitivity near 2.5 μV/W. We confirm the pure spin current nature by changing polarity of the detected via inverse spin Hall effect voltage by switching the direction of the bias magnetic field. We believe that our results will be useful for the development of highly tunable, portable and sensitive microwave antiferromagnet-based functional devices.

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Section: Introductionmentioning

confidence: 99%

“…Iron borate crystals have two magnetic sublattices. The magnetic moments of their ions are located at a small angle of 55 ′ [35] caused by the DMI [34,36]. Along with the existence of a non-zero antiferromagnetic moment, there is also a weak ferromagnetic moment 4π M = 115-120 G at room temperature [37].…”

Section: Introductionmentioning

confidence: 99%