Investigation of Charge Transfer Processes in Phosphorocrystals by ESR Technique

Bulaniy, M. F.; Коваленко, А. В.; Kushnir, Alan Joseph; Omelchenko, S. A.; Shtambur, I. V.; Yakunin, A. A.; Yakunina, N.

doi:10.1007/978-3-642-81344-3_228

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“…On the other hand, these factors favour localization of Mn atoms in the vicinity of the same defects, increasing solubility of the doping impurity. The similar effect has also been reported in the work [6] basing on the EPR studies of ZnSe and ZnS crystals doped with magnetic impurities during the growth process.…”

Section: Resultssupporting

confidence: 88%

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Optical properties of diffuse ZnSe:Mn layers

Makhniy¹,

Kinzerskaya²,

Horley³

et al. 2008

Ukr. J. Phys. Opt.

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It is shown that doping of zinc selenide with Mn atoms from the vapour phase causes appearance of the band peaked at ћω ≈ 2.3 eV in the luminescence and transmission spectra. The intensity of this band changes with the temperature of diffusion annealing and varies after introduction of other doping impurities to the basic substrate, which could be explained by increased solubility of Mn atoms.

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Section: Resultssupporting

confidence: 88%

“…It is also known that the manganese contained in II-VI compounds substitutes the metal atoms, so that it usually appears in the charged state Mn 2+ [6]. This is evidenced experimentally for the case of ZnSe<Al> crystals (see Fig.…”

Section: Resultsmentioning

confidence: 76%

Optical properties of diffuse ZnSe:Mn layers

Makhniy¹,

Kinzerskaya²,

Horley³

et al. 2008

Ukr. J. Phys. Opt.

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Separation of Cubic and Axial Parts of the Crystal Field from Hydrostatic and Uniaxial Pressure Dependence of the Parameter a_o

Zheng

1987

Physica Status Solidi (b)

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The spin Hamiltonian of S-state ions of the d-group (Mn", Fe3+, Cr') in trigonal crystal field is given /1,2/ by H, = g p S.S+D+ m m which could also be written in a unique system using the O n spin operators where a. = -(a-F) is the combination of cubic and axial parts of the crystal field. When EPR measurements are made with the magnetic field either along o r perpendicular to the trigonal axis the term a. can be obtained from the line position but it is not possible to determine a and F separately. It is possible to distinguish the effects of the terms in a and F by making measurements in other directions, but the interpretation of the measurements depends on the knowledge of the position of the? , q , obtain /l/e Therefore most experimental results of S-state ions in trigonal field a r e about ao, not a and F, separately /1,3/. Since a and F are both fourth order crystal field terms, it can be expected that F is considerably smaller than a if it arises from a small perturbation of the cubic field. So in theoretical calculations it is often assumed ao* -a to evaluate the value of a . from the formula of a /4/. However, this approximation sometimes may lead to great e r r o r , especially, in explaining the pressure dependence of a variation of F is not much smaller than that of a although F is often muchsmalle r than a. axis, which is sometimes difficult to because the pressure 0' 1) Chengdu, Sichuan, People's Republic of China. 9physica (b)

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Investigation of Charge Transfer Processes in Phosphorocrystals by ESR Technique

Cited by 2 publications

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Optical properties of diffuse ZnSe:Mn layers

Optical properties of diffuse ZnSe:Mn layers

Separation of Cubic and Axial Parts of the Crystal Field from Hydrostatic and Uniaxial Pressure Dependence of the Parameter a_o

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Investigation of Charge Transfer Processes in Phosphorocrystals by ESR Technique

Cited by 2 publications

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Optical properties of diffuse ZnSe:Mn layers

Optical properties of diffuse ZnSe:Mn layers

Separation of Cubic and Axial Parts of the Crystal Field from Hydrostatic and Uniaxial Pressure Dependence of the Parameter ao

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Separation of Cubic and Axial Parts of the Crystal Field from Hydrostatic and Uniaxial Pressure Dependence of the Parameter a_o