High frequency EPR spectroscopy of Er3+ ions in LiYF4 and LiLuF4: a case study of crystal fields
https://doi.org/10.26907/mrsej-19204
Abstract
We report the electronic paramagnetic resonance (EPR) studies on single crystals of LiRF4 (R = Y and Lu) doped with Er3+ ions in the frequency range of 37-1040 GHz at the liquid helium temperature. Resonance transitions between the Zeeman sublevels of three lower crystal field Kramers doublets of Er3+ ions in magnetic fields up to 1 Tesla are registered. A prominent anisotropy of the EPR spectra in magnetic fields lying in the ab plane of the tetragonal crystal lattice is revealed. The revised set of free-ion and crystal field parameters for LiYF4:Er3+ and the new one for LiLuF4:Er3+ allow us to reproduce successfully the measured frequency and angular dependences of the resonant magnetic fields.
About the Authors
G. S. Shakurov
Zavoisky Physical-Technical Institute, FRC Kazan Scientific Center of RAS
Russian Federation
Russian Federation
Sibirsky trakt 10/7, Kazan 420029
S. L. Korableva
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
B. Z. Malkin
Kazan Federal University
Russian Federation
Russian Federation
Kremlevskaya 18, Kazan 420008
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Review
For citations:
Shakurov G.S., Korableva S.L., Malkin B.Z. High frequency EPR spectroscopy of Er3+ ions in LiYF4 and LiLuF4: a case study of crystal fields. Magnetic Resonance in Solids. 2019;21(2):19204 (7 pp.). https://doi.org/10.26907/mrsej-19204
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