Browsing Bildiri ve Sunum Koleksiyonu by Issue Date
Now showing items 1-20 of 36
-
Atomic and electronic structures of the group-IV elements on Si(111)-(root 3x root 3) surface
(Publishing Ltd, 2008)We have examined the Si(111) surface with 1/3 monolayer of group-IV elements within the abinitio density functional theory We have considered two possible threefold-c oordinated sites for the atom adsorption: (i) H-3 site ... -
Atomic and electronic structures of the group-IV elements on Si(111)-(root 3x root 3) surface
(IOP Publishing, 2008)We have examined the Si(111) surface with 1/3 monolayer of group-IV elements within the ab initio density functional theory. We have considered two possible threefoldcoordinated sites for the atom adsorption: (i) H3 site ... -
The Structural, Elastic, Electronic and Thermodynamical Properties of CaBi: A First-Principles Study
(Boğaziçi University, 2008)We have studied some structural, thermo dynamical, elastic, and electronic properties of CaBi in non- magnetic states without spin polarization by performing ab initio calculations within the LDA approximations. The ... -
Conformational and vibrational studies of triclosan
(2009)The conformational equilibrium of triclosan (5-chloro-2-(2, 4-dichlorophenoxy) phenol) have been calculated using density functional theory (DFT/B3LYP/6-311++G(d, p)) method. Four different geometries were found to correspond ... -
Quantized magnetic flux through the electronic orbits of Dirac hydrogen atom and its relation with the spin dependent selection rules and photons intrinsic flux
(Institute of Physics Publishing, 2009)We have calculated the changes in the quantized magnetic fluxes corresponding to the electronic orbits of Dirac hydrogen atom within the framework of Dirac theory and found that the flux change between the final state and ... -
Distinguishing single photonic transitions from the multiphotonic cases for (ns(2)S(1/2)) -> (n's(2)P(1/2)) -> (n's(2)S(1/2)) photonic transitions in hydrogen-like atoms
(Iop Publıshıng Ltd, 2012)We calculate the selection rules for (ns(2)S(1/2)) -> (n's(2)P(1/2)) -> (n's(2)S(1/2)) single photonic transitions in hydrogenlike atoms. We show that for the first part the reduced selection rules read: [Delta j = +/- 1 ... -
Refractive index changes and absorption coefficients in a spherical quantum dot with parabolic potential
(ELSEVIER SCIENCE BV, 2012)In this study, we have calculated the linear, nonlinear and total refractive index changes and absorption coefficients for the transitions 1s-1p, 1p-1d and 1d-1f in a spherical quantum dot with parabolic potential. Quantum ... -
Spin dependent selection rules for photonic transitions in hydrogen-like atoms
(IOP PUBLISHING LTD, 2012)We calculate the spin dependent selection rules for photonic transitions in hydrogen-like atoms by taking the eigenfunctions of Dirac hydrogen-like atoms. It is shown that photonic transitions occur when [Delta j = 0,+/- ... -
Level-scheme investigation of S-33
(IOP PUBLISHING, 2014)An angular correlation experiment was carried out for S-33 at Laboratori Nazionali di Legnaro with the gamma-ray detector array GASP. The reaction used was Mg-24(N-14,alpha p)S-33 at a beam energy of 40MeV. An analysis of ... -
Electromagnetic transition strengths in S-33
(IOP Publishing Ltd, 2014)An experiment using the Doppler Shift Attenuation Method was performed for S-33 at Laboratori Nazionali di Legnaro using the multi-detector array GASP. Excited states were populated in the fusion-evaporation reaction ... -
A computational study of van der Waals tunnel transistors: Fundamental aspects and design challenges
(Institute of Electrical and Electronics Engineers Inc., 2015)We propose a model Hamiltonian for van der Waals tunnel transistors relying on a few physical parameters that we calibrate against DFT band structure calculations. This approach allowed us to develop a fully three-dimensional ... -
Lifetime measurements and the high-spin structure of Cl-36
(IOP PUBLISHING, 2015)High-spin states in Cl-36 were populated through the Mg-24(N-14,2p)Cl-36 reaction at E(N-14)=31 MeV. Lifetimes have been determined for fifteen states by applying the Doppler shift attenuation method. The results indicated ... -
Computation of energy states of hydrogenic quantum dot with two-electrons
(American Institute Physics, 2016)In this study we have investigated the electronic structure of the hydrogenic quantum dot with two electrons inside an impenetrable potential surface. The energy eigenvalues and wavefunctions of the ground and excited ... -
Calculation of electronic properties of multilayer graphene with Monte Carlo method
(American Institute Physics, 2016)In this study, the electronic transport properties of bilayer graphene is investigated by an ensemble Monte Carlo method. The bilayer graphene has a quadratic energy dependence on wave vector near the points known as Dirac ... -
The Mechanical Properties of ZrSbTe and HfSbTe Compounds
(OP125, 2016)By means of first principles calculations, we have studied the structural and mechanical properties of the ZrSbTe and HfSbTe compounds. The elastic constants of these compounds are calculated, then bulk modulus, shear ... -
Calculation of (n,alpha) reaction cross sections by using some Skyrme force parameters for Potassium (K-41) target nuclei
(E D P Sciences, 2017)In this study, the (n, alpha) nuclear reaction cross section was calculated for K-41 target nuclei for neutron and proton density parameters using SKa, SKb, SLy5, and SLy6 Skyrme force. Theoretical cross section for the ... -
Zeeman transitions in spherical quantum dot
(American Institute Physics, 2017)In this study, the effects of external magnetic field on the energy states of a spherical quantum dot With infinite potential harrier have been investigated by using Quantum Genetic Algorithm (QGA) and Hartree-Fock Roothaan ... -
Investigation of spherical and cylindrical catural Iridium targets by photonuclear reaction
(E D P Sciences, 2017)In this study, natural iridium consisting of Ir-191 and Ir-193 isotopes has been irradiated with 21 MeV photons. The distribution of photons, electrons and neutrons fluxes in the spherical and cylindrical natural iridium ... -
Optical and magnetic properties of some XMnSb and Co(2)YZ Compounds: ab initio calculations
(WILEY-V C H VERLAG GMBH, 2017)In present work, our research is mainly focused on the electronic structures, optical, and magnetic properties of XMnSb (X = Ni, Cu, Pd), Co(2)YZ (Y = Ti; Z = Si, Ge, Sn), and Co(2)YZ (Y = Mn; Z = Al, Ga, Si) Heusler ... -
Entrance channel effect on incomplete fusion
(Jagellonian University, 2018)In the present work, the onset and strength of incomplete fusion were studied in terms of various entrance channel parameters. Excitation functions for individual evaporation residues were measured in the 12C+169Tm system ...
