# Central European Journal of Physics

Central European Journal of Physics > 2008 > 6 > 3 > 643-647

Central European Journal of Physics > 2008 > 6 > 3 > 628-633

Central European Journal of Physics > 2008 > 6 > 3 > 563-568

Central European Journal of Physics > 2008 > 6 > 3 > 697-703

*D*-dimensional radial Schrödinger equation with some molecular potentials, such as pseudoharmonic and modified Kratzer, are obtained. Restrictions on the parameters of the given potential,

*δ*and

*ν*are also given, where

*η*depends on a linear combination of the angular momentum quantum number

*ℓ*and the spatial dimensions

*D*and

*δ*is a parameter...

Central European Journal of Physics > 2008 > 6 > 3 > 469-478

Central European Journal of Physics > 2008 > 6 > 3 > 498-517

*Z*≤ 100 and 130 ≤

*N*≤ 156 was made in dependence on the angular momentum of their rotational states. The experimental values of the moments of inertia were calculated for rotational energy of the classic rotor in its quantum form, with the use of a simple formula. The moment of inertia term appearing in the formula...

Central European Journal of Physics > 2008 > 6 > 3 > 518-523

*A*∼80 mass region and the general features of its structure have been investigated within the framework of the interacting boson model-2. The neutron proton version of the model has been applied to the Se (

*A*=74 to 80) isotopes with emphasis on the description of the 0

_{1}

^{+}, 2

_{1}

^{+}, 0

_{2}

^{+}, 2

_{2}

^{+}and 4

_{1}

^{+}states. The energy levels,

*B*(

*E*2)and

*B*(

*M*1)electromagnetic...

Central European Journal of Physics > 2008 > 6 > 3 > 685-696

Central European Journal of Physics > 2008 > 6 > 3 > 422-426

Central European Journal of Physics > 2008 > 6 > 3 > 648-653

Central European Journal of Physics > 2008 > 6 > 3 > 402-406

Central European Journal of Physics > 2008 > 6 > 3 > 454-461

Central European Journal of Physics > 2008 > 6 > 3 > 415-421

^{5}B

^{6}C

^{7}— type crystals. The molecular model of this crystal was used for calculation of VB by the Density Functional Theory (DFT) and Unrestricted Hartree — Fock (UHF) methods. The molecular cluster consisting of 20 molecules of SbSeBr was used for calculations of averaged...

Central European Journal of Physics > 2008 > 6 > 3 > 539-545

Central European Journal of Physics > 2008 > 6 > 3 > 730-736

_{3}in the paraelectric cubic phase have been studied by using density functional theory within the local density approximation for exchange-correlation for the first time. The band structure shows a band gap of 1.533 eV (AgNbO

_{3})and 1.537 eV (AgTaO

_{3})at (M-⌈)point in the Brillouin zone. The optical spectra of...

Central European Journal of Physics > 2008 > 6 > 3 > 407-414

*f*-

*f*transitions and the crystal field using an approximation of a strong configuration interaction is proposed. The theory enables the anomalous influence of excited configurations with charge transfer on some multiplets of the

*f*shell to be taken into account. With the help of this theory, a satisfactory description of the absorption transitions and luminescence...

Central European Journal of Physics > 2008 > 6 > 3 > 717-729

*d*-dimensional Klein-Gordon equation with scalar

*S*(

*r*) and vector potentials V(

*r*). When

*S*(

*r*) and

*V*(

*r*) are both Coulombic, we obtain all the exact solutions; when the potentials are both of Kratzer type, we obtain all the exact solutions for

*S*(

*r*) =

*V*(

*r*); if

*S*(

*r*) >

*V*(

*r*) we obtain exact solutions under certain...

Central European Journal of Physics > 2008 > 6 > 3 > 588-592

Central European Journal of Physics > 2008 > 6 > 3 > 555-562

Central European Journal of Physics > 2008 > 6 > 3 > 450-453

_{8}Fe

_{6}Ti

_{3}O

_{27}compound was prepared by a high-temperature solid-state reaction technique. Preliminary structural analysis by X-ray diffraction (XRD) confirms the formation of a single-phase compound in an orthorhombic crystal system at room temperature. The elemental content of the compound was analyzed by EDAX microanalysis. Microstructural analysis by scanning electron microscopy...