Attribution of the near-UV absorption bands of YAG:Ce to Ce3+-ions by MCD and ODMR

Reyher, H.-J.; Hausfeld, N; Pape, M. Le; Baur, J.; Schneider, J.

doi:10.1016/s0038-1098(98)00619-x

Cited by 16 publications

(5 citation statements)

References 14 publications

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“…In that case the values depend much on the site symmetry so that we may regard them as sufficiently supported by investigations of Ce 3+ in yttrium aluminum garnet where 1.7 and 2.1 was found. 27 Reyher et al attributed the shoulder at g Ϸ 5.0 to an unknown bulk effect, i.e., a terbium-related transition.…”

Section: Discussionmentioning

confidence: 99%

Photochromism of doped terbium gallium garnet

et al. 2006

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In order to understand the photochromic effect in terbium gallium garnet doubly doped with calcium and cerium, the spectral characteristics of absorption changes induced by heating and irradiation are studied. Based on the findings we conclude that the photochromic band at 420 nm originates from defects involving Tb 4+. Previously the band was attributed to Ce 3+. Two possible models are suggested and discussed, both of which are in agreement with the obtained experimental results.

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Section: Discussionmentioning

confidence: 99%

Photochromism of doped terbium gallium garnet

et al. 2006

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“…Cerium-doped yttrium-aluminum garnet (YAG:Ce) materials have attracted attention due to their potential application in high performance scintillators developed earlier for lasers. Further, the triply-ionized cerium ion in YAG is considered to be a suitable system for quantum bit implementations [1][2][3][4][5][6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

“…Reyher et al [4] identified the Ce 3+ ion as origin of the photo-refractive effect in YAG crystals by using a combination of optically-detected magnetic resonance and magnetic circular dichroism of the absorption. They showed a correlation between the optical bands and the 4f ↔ 5d transitions of the Ce 3+ states.…”

Section: Introductionmentioning

confidence: 99%

Electron spin dynamics of Ce3+ ions in YAG crystals studied by pulse-EPR and pump-probe Faraday rotation

et al. 2017

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The spin relaxation dynamics of Ce 3+ ions in heavily cerium-doped YAG crystals is studied using pulse-electron paramagnetic resonance and time-resolved pump-probe Faraday rotation. Both techniques address the 4f ground state, while pump-probe Faraday rotation provides also access to the excited 5d state. We measure a millisecond spin-lattice relaxation time T1, a microsecond spin coherence time T2 and a ∼ 10 ns inhomogeneous spin dephasing time T * 2 for the Ce 3+ ground state at low temperatures. The spin-lattice relaxation of Ce 3+ ions is due to modified Raman processes involving the optical phonon mode at ∼ 125 cm −1 . The relaxation at higher temperature goes through a first excited level of the 2 F 5/2 term at about ω ≈ 228 cm −1 . Effects provided by the hyperfine interaction of the Ce 3+ with the 27 Al nuclei are observed.

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“…ions in garnet crystals exhibit strong magnetic circular dichroism (MCD) in absorption [29,30]. In [30], EPR of cerium ions has been observed via MCD in Y 3 Al 5 O 12, and the MCD bands at 227, 270, 338, and 458.5 nm have been definitely attributed to Ce 3? .…”

Section: Resultsmentioning

confidence: 99%

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

et al. 2016

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Electron paramagnetic resonance (EPR) in the ground state of Gd 3? ions in (LuGd) 3 Al 5 O 12 single crystals has been found by monitoring the Ce 3? 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 Ce 3? ground-state spin sublevels, which can be changed at the EPR of Gd 3? due to GdCe cross relaxation.

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Attribution of the near-UV absorption bands of YAG:Ce to Ce3+-ions by MCD and ODMR

Cited by 16 publications

References 14 publications

Photochromism of doped terbium gallium garnet

Photochromism of doped terbium gallium garnet

Electron spin dynamics of Ce3+ ions in YAG crystals studied by pulse-EPR and pump-probe Faraday rotation

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

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