Magnetic anisotropy in CsGd(MoO4)2 probed by EPR spectroscopy.

Here we report electron paramagnetic resonance (EPR) study of rare-earth paramagnet CsGd(MoO4)2. Multifrequency EPR measurements allowed us to directly probe the splitting of the lowest 8S7/2 multiplet of Gd3+ ion and revealed the rhombic type of single-ion anisotropy. An easy-axis anisotropy approximation with a rhombic distortion of the Gd3+ local environment describes obtained EPR spectra and yield energies of 8S7/2 splitting. Within this model, we discuss the configuration of the lowest Gd3+ multiplet, its zero-field splitting, and the anisotropy of magnetic properties in CsGd(MoO4)2. We argue that the zero-field splitting of 8S7/2 induces a multiple structure of EPR spectra in CsGd(MoO4)2.

Citation

D Kamenskyi, V Tkáč, E Čižmár, V Khrustalyov, K Kutko. Magnetic anisotropy in CsGd(MoO4)2 probed by EPR spectroscopy. Journal of physics. Condensed matter : an Institute of Physics journal. 2020 May 18;32(38):385801

PMID: 32422625

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