Full-text resources of PSJD and other databases are now available in the new Library of Science.
Visit https://bibliotekanauki.pl
Preferences help
Polish version English version Language
enabled [disable] Abstract
Number of results

Results found: 10

Number of results on page
first rewind previous Page / 1 next fast forward last

Search results

Search:
in the keywords:  31.15.V-
help Sort By:

help Limit search:
first rewind previous Page / 1 next fast forward last
1
Content available remote

CI Calculations of the Ground State Ionization Potential and Electron Affinity of Aluminum

100%
Hussein A.
Acta Physica Polonica A
|
2015
|
vol. 128
|
issue 3
268-273
EN
Nonrelativistic configuration interaction study for Al⁺, Al and Al¯ are presented, included calculations of ionization potential and electron affinity of the ²P° ground state of Al. CI calculations up to double, triple and quadrupole excitations for Al⁺, Al and Al¯, respectively, where neon fixed core is considered. Appropriate Slater type basis functions were developed suitable to recover both of core-valence and core-core correlation effect. The relativistic effect on both ionization potential and electron affinity are taken into account at the relativistic Hartree-Fock level. The calculated electron affinity is 432.811 meV which is in excellent agreement with experimental value of Sheer et al. 432.83(5) meV, whereas the calculated ionization potential is 5985.764 meV, the latter is in perfect agreement with experimental value of 5985.768 meV.
2
Content available remote

Properties of the K_{α} X-Ray Transitions in Highly Ionized Chlorine

63%
Jiang C., Hu F., Zang Y., Jiang G.
Acta Physica Polonica A
|
2014
|
vol. 126
|
issue 3
694-700
EN
Relativistic configuration interaction calculations with the inclusion of the Breit interaction, quantum electrodynamics and finite nuclear mass corrections have been carried out in the extended optimal level scheme using multi-configuration Dirac-Fock wave functions on the wavelengths, electric dipole transition rates and oscillator strengths of chlorine. Through the use of the active space method, the calculated values are compared with the other available data on He-like and Be-like chlorine and are found to be in very good agreement with them. In this paper we give accurate transition properties from Cl(VIII) through Cl(XVI). These data provide reference value for level lifetime, charge state distribution and average charge of chlorine plasma.
3
Content available remote

Energy Levels and Oscillator Strength of Ni XXIII

63%
Hu F., Jiang G., Yang J., Zhang J., Zhao X.
Acta Physica Polonica A
|
2011
|
vol. 120
|
issue 3
429-437
EN
Energy levels and oscillator strengths have been calculated for the fine-structure transitions among the levels of the (1s^2) 2s^2 2 p^2, 2s2 p^3, 2p^4, 2s^2 2p3s, 2s^2 2p3p, and 2s^2 2p3d configurations of Ni XXIII using the graspVU and FAC program. The extensive configuration interaction and relativistic effects have been included while generating the wave functions. The results are compared with other recent theoretical estimates, and their accuracy is assessed.
4
Content available remote

Effect of Linear Absorption on Efficiency of SHG in Layered Structure

51%
Soltanmohammadi J., Jamshidi-Ghaleh K., Masalehdan H.
Acta Physica Polonica A
|
2013
|
vol. 123
|
issue 2
401-403
EN
The effect of linear absorptions on conversion efficiency of the fundamental radiation to the second harmonic wave in a layered structure is investigated under intensity constant approximation. Behaviour of the conversion efficiency after each layer, up to third layer, is graphically illustrated.
5
Content available remote

Ground States of Helium Atom and Hydrogen Negative Ion in the Presence of Magnetic Field Using Variational Monte Carlo Technique

51%
Doma S., Shaker M., Farag A., El-Gammal F.
Acta Physica Polonica A
|
2014
|
vol. 126
|
issue 3
700-705
EN
Using variational Monte Carlo method, we calculated the 1^1 0^{+} state energies, the derivatives of the total energy and the ionisation energies of the helium atom, and hydrogen negative ion in the presence of magnetic field regime between 0 a.u. and 10 a.u. Our calculations are based on using two types of compact and accurate trial wave functions used before to calculate energies in the absence of magnetic field. Our results are in good agreement with the most recent previous accurate values and also with the exact values.
6
Content available remote

Energies, Landé Factors, and Lifetimes for Some Excited Levels of Neutral Ytterbium (Z = 70)

51%
Karaçoban B., Özdemır L.
Acta Physica Polonica A
|
2011
|
vol. 119
|
issue 3
342-353
EN
We have calculated relativistic energies, Landé factors, and lifetimes for some excited levels outside the core [Xe] in neutral ytterbium (Yb I, Z=70) using two configuration interaction methods (multiconfiguration Hartree-Fock method within the framework of Breit-Pauli relativistic corrections developed by Fischer, and Cowan's relativistic Hartree-Fock method). Results obtained have been compared with other calculations and experiments.
7
Content available remote

Energies and Lifetimes of Levels for Doubly Ionized Xenon and Radon

51%
Eser S., Özdemır L.
Acta Physica Polonica A
|
2018
|
vol. 133
|
issue 5
1324-1333
EN
We have reported the energies and radiative lifetimes of levels for doubly ionized xenon (Xe III) and radon (Rn III). The calculations have been performed using the general-purpose relativistic atomic structure package based on fully relativistic multiconfiguration Dirac-Fock method. We have compared the results obtained from this work for (Xe III) with previous works in available literature. For (Rn III), there is no data except a few energy levels. Hence, we have presented new values on the energy levels of (Rn III).
8
Content available remote

Majorana States in Presence of Electron Interactions: Spinful Fractional Josephson Junction with a Quantum Dot

51%
Stefański P.
Acta Physica Polonica A
|
2018
|
vol. 133
|
issue 3
362-365
EN
We consider a fractional Josephson junction mediated by a quantum dot in which the Zeeman field arising from the magnetic fields driving left and right wires into topological phase can be tuned. Both fields, forming an angle Θp, can be rotated in the common plane perpendicular to the spin-orbit field in the wires. For Θp=0 the dot can be regarded as effectively non-interacting due to the large Zeeman splitting, whereas for Θp ≤sssimπ electron interactions are switched on the dot, affecting Majorana states. The tunnel electrode, weakly coupled to the dot from the top, allows to probe their density of states via conductance measurement. We show that electron interactions renormalize Majorana peak and introduce characteristic asymmetry in the gate voltage dependence of the transverse zero-bias conductance through the dot.
9
Content available remote

Energies and Lifetimes for Some Excited Levels in La I

45%
Karaçoban B., Özdemir L.
Acta Physica Polonica A
|
2008
|
vol. 113
|
issue 6
1609-1618
EN
We calculated relativistic energies and Landéfactors for 5d6s², 5d²6s, 5d³, 5d6s7s, 4f6s6p, 5d6s6p, 5d²6p, and 4f5d6s levels in neutral lanthanum (Z=57). We also obtained electric dipole transition energies and lifetimes for some excited levels. The calculations are based upon the multiconfiguration Hartree-Fock method within the framework Breit-Pauli relativistic corrections. Moreover, the results obtained were compared with other calculations and experiments.
10
Content available remote

Electric Dipole Transition Parameters for 5s-5p and 5p-5d Transitions in Doubly Ionized Xenon

45%
Eser S., Özdemir L.
Acta Physica Polonica A
|
2017
|
vol. 132
|
issue 4
1284-1289
EN
Using the general-purpose relativistic atomic structure package based on the fully relativistic multiconfiguration Dirac-Fock method, we have reported the electric dipole transition (E1) parameters such as wavelengths, weighted oscillator strengths, transition rates (or probabilities) and line strengths for 5s-5p and 5p-5d transitions in Xe²⁺. In calculations, the Breit interaction and quantum electrodynamic effects have been included as perturbations. The calculated values for energy levels including valence and core-valence correlation have been compared with other available experimental and theoretical values in literature. Our transition results can provide useful data for, in particular, experimental works in future.
first rewind previous Page / 1 next fast forward last
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.