Abstract
X-band electron paramagnetic resonance measurements on a single crystal of the highly frustrated SrCu2(BO3)2 system are shown to provide an essential inspection of the magnetic anisotropy present in this compound. The very broad absorption lines seem to be consistent with the largest anisotropy term, namely, the antisymmetric Dzyaloshinsky-Moriya (DM) interaction allowed by symmetry. However, the previously well-accepted model of only interdimer interaction is generalized with additional intradimer DM terms. Moreover, spin-phonon coupling is recognized as the cause of the line width broadening with increasing temperature.
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Zorko, A., Arčon, D., Kageyama, H. et al. Magnetic anisotropy of the SrCu2(BO3)2 system as revealed by X-band ESR. Appl. Magn. Reson. 27, 267–278 (2004). https://doi.org/10.1007/BF03166320
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DOI: https://doi.org/10.1007/BF03166320