Search Results - "AVRAM, N. M"

Ground and excited state absorption of Ni2+ ions in MgAl2O4 : Crystal field analysis by BRIKA, M. G, AVRAM, N. M, AVRAM, C. N, RUDOWICZ, C, YEUNG, Y. Y, GNUTEK, P

“…The exchange charge model (ECM) of crystal field is utilized to provide the theoretical explanation of the ground state absorption and the excited state…”
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First-principles calculations of structural, electronic, optical, elastic properties and microscopic crystal field effects in Rb2CrF6 by BRIK, M. G, AVRAM, N. M, MA, C.-G

“…In the present work we report on the results of ab initio calculations of the optimized crystal structure, band structure, density of states (DOS), optical and…”
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Electron-phonon coupling and Jahn-Teller effect in KMgF3:Cr3 by Brik, M. G., Avram, N. M., Tanaka, I.

“…Energy levels of the Cr3+ ion in the KMgF3 crystal are analyzed by means of the crystal field theory. Electron–phonon coupling constants (the Stokes shift, the…”
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Crystal field effects on interionic distance in cubic MgO crystal doped with Fe2+ ions by Ivascu, S., Gruia, A.S., Avram, N.M.

“…The exchange charge model of crystal field was applied to determine the dependence of the crystal field strength 10Dq on interionic distances R between the…”
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Advances of crystal field theory and exchange charge model by Brik, M.G., Avram, N.M., Avram, C.N.

“…A short overview of the exchange charge model of crystal field is given. Several most important applications of the model to the calculations of the crystal…”
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Comparative analysis of crystal field effects and energy level scheme of six-fold coordinated Cr4+ ion in the pyrochlores, Y2B2O7 (B=Ti4+, Sn4+) by BRIK, M. G, SRIVASTAVA, A. M, AVRAM, N. M

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Semi-empirical and ab initio DFT modeling of the spin-Hamiltonian parameters for Fe6+: K2MO4 (M = S, Cr, Se) by Avram, N M, Brik, M G, Andreici, E-L

“…In this paper we calculated the spin-Hamiltonian parameters (g factors , and zero field splitting parameter D) for Fe6+ ions doped in K2MO4 (M = S, Cr, Se)…”
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Non-radiative transitions in the anharmonic oscillating field model by Brik, M.G., Drăgănescu, G.E., Avram, N.M., Avram, C.N.

“…Non-radiative transitions (NRT) between electron states of an impurity ion are considered in the framework of the energy levels crossing model. NRT is supposed…”
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Spectroscopic and crystal field studies of LiAlO2:Mn2+ single crystals by BRIK, M. G, HAO TENG, HUI LIN, SHENGMING ZHOU, AVRAM, N. M

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Ab initio calculations of the electronic, structural and elastic properties of Nb2InC by Brik, M.G., Avram, N.M., Avram, C.N.

“…► Structural, electronic, and elastic properties of Nb2InC were calculated. ► Pressure effects on the structural and elastic properties were analyzed. ► For…”
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Empirical relation between covalence and the energy position of the Ni2+1E state in octahedral complexes by Brik, M.G., Srivastava, A.M., Avram, N.M., Suchocki, A.

“…In this paper, a simple empirical equation that relates the energy of the spin-forbidden 3A2–1E transition of the octahedrally coordinated Ni2+ ion with the…”
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Calculation of the spectral, structural, and electronic properties of NaCrSi2O6 and LiCrSi2O6 crystals by Brik, M.G., Avram, N.M., Gruia, A.S.

“…•Combined analysis based on crystal field theory and DFT independent methods have been used for (Na, Li)CrSi2O6 crystals.•Crystal field parameters modeling and…”
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First principles and crystal field calculations of the spectral, structural and electric properties of (Na, Li)VSi2O6 clinopyroxenes crystals by Brik, M G, Gruia, A S, Avram, C N, Andreici, E-L, Avram, N M

“…In the present paper we report on the results of theoretical modeling of the structural, spectral and electronic properties of (Na, Li)VSi2O6 clinopyroxenes…”
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Comparative study of crystal field effects for Ni2+ ion in LiGa5O8, MgF2 and AgCl crystals by BRIK, M. G, AVRAM, C. N, AVRAM, N. M

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The luminescent properties of a ZnGa2O4 spinel doped with Eu3+ and Er3+ ions by Vasile, M, Vlazan, P, Sfirloaga, P, Grozescu, I, Avram, N M, Rusu, E

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Studies of variation of interionic distances and crystal field effects in ZnS:V2+ and MgO:Cr3 by AVRAM, N. M, BRIK, M. G, KITYK, I. V

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Crystal field effects and electron-phonon interaction in K2LiAlF6:Cr3 by REISZ, A. M, BRIK, M. G, AVRAM, C. N, AVRAM, N. M

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Comparative crystal field study of Ni2+ energy levels in NiCl2, NiBr2, and NiI2 crystals by BRIK, M. G, AVRAM, N. M, AVRAM, C. N

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Crystal field analysis of energy level structure of the Cr2O3 antiferromagnet by BRIK, M. G, AVRAM, N. M, AVRAM, C. N

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Calculations of spin hamiltonian parameters and analysis of trigonal distortions in LiSr(Al,Ga)F6:Cr3+ crystals by BRIK, M. G, AVRAM, C. N, AVRAM, N. M

“…The effective spin-Hamiltonian (SH) parameters (zero-field splitting D and g factors g and g) for Cr3+ ions in LiSr(Al,Ga)F6 crystals are calculated from the…”
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