Theory of Faraday rotation and susceptibility of rare-earth trifluorides

Xu, Yingqi; Duan, Mingqian

doi:10.1103/physrevb.46.11636

Cited by 31 publications

(21 citation statements)

References 17 publications

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“…Cerium Fluoride is superionic [16], the fluorine ions having high mobility, which could account for part of its observed radiation hardness. It is also paramagnetic, a characteristics which influences the Faraday rotation in a magnetic field [17]. Fluorine ions labelled F 1 in literature [18] account for most of the Cerium Fluoride conductivity and hence their mobility might help repair defects.…”

Section: Cerium Fluoridementioning

confidence: 99%

A study of high-energy proton induced damage in cerium fluoride in comparison with measurements in lead tungstate calorimeter crystals

Dissertori

Lecomte

Luckey

et al. 2010

Nuclear Instruments and Methods in Physics Research Section A:

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A CeF 3 crystal produced during early R&D studies for calorimetry at the CERN Large Hadron Collider was exposed to a 24 GeV/c proton fluence Φ p = (2.78±0.20)×10 13 cm −2 and, after one year of measurements tracking its recovery, to a fluence Φ p = (2.12 ± 0.15) × 10 14 cm −2 . Results on protoninduced damage to the crystal and its spontaneous recovery after both irradiations are presented here, along with some new, complementary data on proton-damage in Lead Tungstate. A comparison with FLUKA Monte Carlo simulation results is performed and a qualitative understanding of high-energy damage mechanism is attempted.

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Section: Cerium Fluoridementioning

confidence: 99%

A study of high-energy proton induced damage in cerium fluoride in comparison with measurements in lead tungstate calorimeter crystals

Dissertori

Lecomte

Luckey

et al. 2010

Nuclear Instruments and Methods in Physics Research Section A:

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“…[6] have reported theoretical investigations on the magnetic properties and magneto-optical properties of CeF 3 using experimental data on temperature behavior of the magnetic dc-susceptibility and Faraday rotation measured in CeF 3 single crystal [7]. Mixed-valent behavior of Ce-ion in CeF 3 has been suggested [6] to agree with results of the theoretical calculations and the experimental data. An Important role of the super-exchange magnetic field (caused by super-exchange interaction between Ce 3+ ions) in the splitting of the Ce 3+ crystal field levels has been considered in the Ref.…”

Section: Introductionmentioning

confidence: 54%

“…Xu and M. Duan in Ref. [6] described the inverse susceptibility in CeF 3 (experimental data from Ref. [7]) rather well in the temperature range T > 50 K taking the mixed-valent behavior of the Ce 3+ ions into account using a very simple model of the crystal field.…”

Section: Discussionmentioning

confidence: 99%

Revised Measurements and Interpretation of Magnetic Properties of Oriented CeF $$_{3}$$ 3 Single Crystals

et al. 2016

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We report the magnetic susceptibility and magnetization of the singlecrystal CeF 3 precisely measured in external magnetic field-directed B||c and B⊥c in wide ranges of temperatures from 1.8 to 300 K and magnetic field strength of 0-40 kG. Magnetic susceptibility, magnetization, and Ce 3+ Stark energies of CeF 3 have been calculated in the framework of the crystal field theory; good agreement with the experimental data has been achieved in the whole range of temperatures and magnetic fields without taking into account the mixed-valent Ce 3+ -Ce 4+ behavior or super-exchange interaction of cerium ions that have been proposed before. Anomalous behavior of the magnetic susceptibility near T ∼ 50 K is naturally explained in the crystal field model.

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“…We have shown theoretically that the intra-ionic 4f n → 4f n−1 5d electric dipole transition is the main origin of the giant MO enhancement of rare earth ions in some compounds [14][15][16]. Since the energy difference between the 3d n and 3d n−1 4p configurations in the 3d ions is much larger than that between the 4f n and 4f n−1 5d configurations in the rare earth ions, for 3d ions, the factor ω 2 /(ω 2 ng − ω 2 ) (see Eq.…”

Section: Introductionmentioning

confidence: 99%

Quantum theory of the magneto-optical effect induced by Ni ions in barium ferrites

Zhang

Guillot

1999

Eur. Phys. J. B

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To reveal the physical origin of the giant magneto-optical enhancement of Ni 2+ ions in barium ferrite, quantitative calculations of the contributions of both the intra-ionic electric dipole transition between the 3d 8 and 3d 7 4p configurations of the Ni 2+ ions and the intra-ionic electric dipole d → d transition induced by odd-parity crystal field terms are presented. It is deduced that the 3d 8 → 3d 7 4p transition is important in the origin of the considered magneto-optical enhancement. The most important factor is the Ni-Fe superexchange interaction; since it is strong enough, the Faraday rotation produced by the Ni 2+ ions is large though the energy difference between the 3d 8 and 3d 7 4p configurations is large. It is demonstrated that though the intra-ionic electric dipole d → d transition does produce Faraday rotation peaks in the visible range, their magnitude is too small to explain the observed Faraday rotation. The effect of the spin-orbit interaction on the Faraday rotation is analysed. The spin-orbit interaction of the ground configuration plays a very important role in the occurrence of Faraday effects, but the Faraday rotation does not increase linearly with the strength of the spin-orbit coupling. On the contrary, the spin-orbit interaction of the excited configuration has almost no effect on the Faraday rotation. It is shown that the mixing of the different multiplets of the ground term induced by the crystal field has a great influence on the magneto-optical properties.

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Theory of Faraday rotation and susceptibility of rare-earth trifluorides

Cited by 31 publications

References 17 publications

A study of high-energy proton induced damage in cerium fluoride in comparison with measurements in lead tungstate calorimeter crystals

A study of high-energy proton induced damage in cerium fluoride in comparison with measurements in lead tungstate calorimeter crystals

Revised Measurements and Interpretation of Magnetic Properties of Oriented CeF $$_{3}$$ 3 Single Crystals

Quantum theory of the magneto-optical effect induced by Ni ions in barium ferrites

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