2022
DOI: 10.1021/acs.nanolett.2c02124
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Anisotropic Gigahertz Antiferromagnetic Resonances of the Easy-Axis van der Waals Antiferromagnet CrSBr

Abstract: We report measurements of antiferromagnetic resonances in the van der Waals easy-axis antiferromagnet CrSBr. The interlayer exchange field and magnetocrystalline anisotropy fields are comparable to laboratory magnetic fields, allowing a rich variety of gigahertz-frequency dynamical modes to be accessed. By mapping the resonance frequencies as a function of the magnitude and angle of applied magnetic field, we identify the different regimes of antiferromagnetic dynamics. The spectra show good agreement with a L… Show more

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Cited by 21 publications
(33 citation statements)
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“…4a, there is a single peak in microwave absorption among all the frequencies, with gradual and linear shift from 0.1 T to 0.5 T as increasing the resonance frequency. It reveals an obvious electron paramagnetic resonance signal, which could be well tted by Kittel equations 41,42 . The resonance in 100 K indicates similar behavior with that in 50 K (see Supplementary Fig.…”
Section: Resultsmentioning
confidence: 91%
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“…4a, there is a single peak in microwave absorption among all the frequencies, with gradual and linear shift from 0.1 T to 0.5 T as increasing the resonance frequency. It reveals an obvious electron paramagnetic resonance signal, which could be well tted by Kittel equations 41,42 . The resonance in 100 K indicates similar behavior with that in 50 K (see Supplementary Fig.…”
Section: Resultsmentioning
confidence: 91%
“…It is widely assumed that uniaxial magnetic anisotropy is critical for achieving ultrafast spin transfer and e cient spin-wave excitation in an antiferromagnet 41 . To investigate the magnon modes coming from magnetic anisotropy and SF transition, ferromagnetic resonance (FMR) measurements were proceeded at different temperatures and magnetic elds.…”
Section: Resultsmentioning
confidence: 99%
“…We observed all the microwave absorption spectra in the frequency range of 3–13 GHz. The much lower frequency compared to traditional antiferromagnets is because of the dominant weak interlayer AFM coupling 43 . The representative resonances of 50 K and 10 K along the a axis are shown in Fig.…”
Section: Resultsmentioning
confidence: 96%
“…It is widely assumed that uniaxial magnetic anisotropy is critical for achieving ultrafast spin transfer and efficient spin-wave excitation in an antiferromagnet 40 43 . To investigate the magnon modes coming from the magnetic anisotropy and the SF transition, antiferromagnetic resonance (AFMR) measurements were proceeded at different temperatures and magnetic fields.…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation