The Gd–Ce Cross-Relaxation Effects in ODMR via Ce 3+  Emission in Garnet Crystals

N. G. Romanov; D. O. Tolmachev; A. S. Gurin; Yu. A. Uspenskaya; E. V. Edinach; H. R. Asatryan; A. G. Badalyan; P. G. Baranov; A. G. Petrosyan; H. Wieczorek; C. Ronda

doi:10.1007/s00723-016-0795-3

The Gd–Ce Cross-Relaxation Effects in ODMR via Ce³⁺ Emission in Garnet Crystals

Authors: Romanov N.G.¹, Tolmachev D.O.¹, Gurin A.S.¹, Uspenskaya Y.A.¹, Edinach E.V.¹, Asatryan H.R.¹, Badalyan A.G.¹, Baranov P.G.¹, Petrosyan A.G.², Wieczorek H.³, Ronda C.³
Affiliations:
1. Ioffe Institute
2. Institute for Physical Research, NAS RA
3. Philips Research
Issue: Vol 47, No 7 (2016)
Pages: 737-744
Section: Article
URL: https://journals.rcsi.science/0937-9347/article/view/247497
DOI: https://doi.org/10.1007/s00723-016-0795-3
ID: 247497

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Abstract

Electron paramagnetic resonance (EPR) in the ground state of Gd³⁺ ions in (LuGd)₃ Al₅O₁₂ single crystals has been found by monitoring the Ce³⁺ photoluminescence intensity under circularly polarized excitation in the presence of the 35 GHz microwave field. Due to spin selection rules for optical transitions, the circularly polarized excitation allowed monitoring the populations of the Ce³⁺ ground-state spin sublevels, which can be changed at the EPR of Gd³⁺ due to Gd–Ce cross relaxation.

Keywords

Electron Paramagnetic Resonance, Electron Paramagnetic Resonance Spectrum, Yttrium Aluminium Garnet, Electron Paramagnetic Resonance Line, Magnetic Circular Dichroism

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The Gd–Ce Cross-Relaxation Effects in ODMR via Ce3+ Emission in Garnet Crystals

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The Gd–Ce Cross-Relaxation Effects in ODMR via Ce³⁺ Emission in Garnet Crystals