Paramagnetic Resonance Spectrum of Manganese in Single Crystals of Alkali Halide Grown from the Melt

The electron paramagnetic resonance of γ -Irradiated single crystals of dimethyl malonic acid [(CH3)2C(COOH)2] has been studied for different orientations of the crystal in a magnetic field. The radicals produced by gamma irradiation have been investigated between 123 and 300 K. The spectra were found to be temperature independent, and radiation damage centres were attributed to [(CH3)2C(COOH)2]+ radicals. The g factor and hyperfine coupling constants were found to be almost isotropic with average values g = 2.0036, a(COOH)2 = 0.5 mT, a(CH3)2 = 2.1 mT, respectively, and spin density ρ = 91% of the [(CH3)2C(COOH)2]+ radical.

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Парамагнитные комплексы в кристаллах селенида цинка с примесью железа

Физика твердого тела ◽

10.21883/ftt.2018.07.46124.005 ◽

2018 ◽

Vol 60 (7) ◽

pp. 1365

Author(s):

В.А. Важенин ◽

А.П. Потапов ◽

А.В. Фокин ◽

М.Ю. Артёмов ◽

В.И. Козловский

Keyword(s):

Single Crystals ◽

Zinc Selenide ◽

Resonance Spectrum ◽

Red Light ◽

Spin Hamiltonian ◽

Iron Ion ◽

Zinc Vacancy ◽

Paramagnetic Resonance

AbstractParamagnetic resonance of ZnSe: Fe single crystals was studied at 120 K. Parameters of the spin Hamiltonian were determined for the monoclinic dimer complex Fe^3+–Cu^+ and a second discovered Fe^3+ center, which appears due to association of the iron ion with a K^+ ion in a Zn^2+ position or with a zinc vacancy. Effect of illumination of the zinc selenide samples by blue, green and red light on the paramagnetic resonance spectrum was investigated.

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Electron Paramagnetic Resonance of the V3+ Ion in CsAl(SO4)2∙12H2O

Canadian Journal of Physics ◽

10.1139/p71-180 ◽

1971 ◽

Vol 49 (11) ◽

pp. 1539-1541 ◽

Cited By ~ 6

Author(s):

J. G. Clarke ◽

J. A. MacKinnon

Keyword(s):

Electron Paramagnetic Resonance ◽

Electron Paramagnetic Resonance Spectrum ◽

Single Crystals ◽

Resonance Spectrum ◽

Paramagnetic Resonance ◽

Microwave Spectrometer ◽

X Band ◽

Electron Paramagnetic

The electron paramagnetic resonance spectrum of the V3+ ion in CsAl(SO4)2∙12H2O single crystals has been studied in the {100} and {111} planes at 4.2 °K with an X-band microwave spectrometer.

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Electron Paramagnetic Resonance of Ti3+ Ions in KAl(SO4)2∙12H2O

Canadian Journal of Physics ◽

10.1139/p75-102 ◽

1975 ◽

Vol 53 (8) ◽

pp. 841-842 ◽

Cited By ~ 5

Author(s):

John A. MacKinnon ◽

M. Shannon

Keyword(s):

Electron Paramagnetic Resonance ◽

Single Crystals ◽

Resonance Spectrum ◽

Point Group ◽

Spin Hamiltonian ◽

Potassium Alum ◽

Paramagnetic Resonance ◽

Microwave Spectrometer ◽

X Band ◽

Electron Paramagnetic

The paramagnetic resonance spectrum of Ti3+ ions in potassium alum (KAl(SO4)2∙12H2O) single crystals has been studied in the {100} planes at 4.2 K with an X band microwave spectrometer. The spectrum is an analogue of that reported by Dionne for Ti3+ ions in rubidium alum (RbAl(SO4)2∙12H2O) and by MacKinnon and Dionne for Ti3+ ions in the thallium alum (TlAl(SO4)2∙12H2O). The spectrum was explained with a model of 12 magnetic complexes, the complexes being related to each other through the symmetry elements of the [Formula: see text] point group of the alum lattice. The three g factors for the spin Hamiltonian with S = 1/2 were found to be 1.979, 1.898, and 1.828, with an accuracy of ±0.005.

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