Exchange Interactions in the Cr3+–Cr3+ Ion Pair in the ABO3 (A = Ga, In, Sc) Diamagnetic Matrix (Обменные взаимодействия в паре ионов Cr3+−Cr3+ в диамагнитной матрице ABO3 (A = Ga, In,Sc))

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.The exchange interactions in the Cr3+–Cr3+ ion pairs in the isostructural ABO3 (A = Ga, In, Sc) diamagnetic compounds have been examined using the magnetic resonance technique. The values of bilinear and biquadratic exchange interactions have been determined. It is shown that the biquadratic exchange in the Cr3+–Cr3+ pair in these compounds is caused by the exchange striction

Electron Paramagnetic Resonance of Cr3+ Ions in Single Crystals of Yttrium Aluminum Borate YAl3(BO3)4

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.Single crystal of yttrium aluminum borate YAl3(BO3)4 doped with chromium ions (1 at.%) was studied using electron paramagnetic resonance spectroscopy. It is shown that chromium ions introduced into the sample occupy yttrium ion sites in the crystal structure. The parameters of the spin Hamiltonian of Cr3+ ions in the YAl3(BO3)4 matrix are determined at different temperatures. The sign of the fine structure parameter D allows the conclusion that the chromium ions in YAl3(BO3)4 single crystals have an easy-plane anisotropy

Electron Paramagnetic Resonance of Cr3+ Ions in ABO3 (A = Sc, Lu, In) Diamagnetic Crystals

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.A magnetic resonance method is applied to the investigation of a number of isostructural diamagnetic compounds ABO3 (A = Sc, Lu, In) with small additions of Cr3+ ions (S = 1/2) sufficient to observe single- ion spectra. It is shown that the resonance spectra for isolated Cr3+ ions can be described to a good accuracy by the ordinary axial spin Hamiltonian for 3d ions in octahedral oxygen environment. The parameters of the spin Hamiltonian are determined. It is established that Cr3+ ions in these crystals are characterized by easy-axis-type anisotropy

Electron Paramagnetic Resonance of Cr3+ Ions in ABO3 (A = Sc, Lu, In) Diamagnetic Crystals

Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.A magnetic resonance method is applied to the investigation of a number of isostructural diamagnetic compounds ABO3 (A = Sc, Lu, In) with small additions of Cr3+ ions (S = 1/2) sufficient to observe single- ion spectra. It is shown that the resonance spectra for isolated Cr3+ ions can be described to a good accuracy by the ordinary axial spin Hamiltonian for 3d ions in octahedral oxygen environment. The parameters of the spin Hamiltonian are determined. It is established that Cr3+ ions in these crystals are characterized by easy-axis-type anisotropy