Interpretation of soft X-ray emission spectra in terms of relativistic electric dipole transition probabilities

1978 ◽  
Vol 48 (4) ◽  
pp. 349-356 ◽  
Author(s):  
Peter Weinberger ◽  
Franz Rosicky
Keyword(s):  
Electric Dipole ◽  
Transition Probabilities ◽  
Emission Spectra ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
X Ray

Luminescence Properties of ZnO:Eu3+ Red Emitting Phosphor Prepared by Precipitation Method

2013 ◽  
Vol 690-693 ◽  
pp. 594-597
Author(s):  
Lin Yan Jia ◽  
Zhong Bao Shao ◽  
Jun Feng Han
Keyword(s):  
Doping Concentration ◽  
Emission Spectra ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Luminescence Properties ◽  
Precipitation Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Matrix Lattice ◽  
Red Emitting Phosphor

Zinc oxide doped with Eu3+ ions red emitting phosphors were prepared by precipitation method, and its luminescence properties were investigated. The phosphors were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectra. The ZnO:Eu3+ phosphors were obtained at 600°C by calcining precipitation precursor. These phosphors can be effectively excited at 465nm. In emission spectra, the strongest peak at 616nm correlating to red emission is due to the electric dipole transition 5D07F2 of Eu3+ ions. Eu3+ions replaced Zn2+ ions and occupied the non-centrosymmetric sites in the ZnO matrix lattice. The phosphor particles with narrow distribution range are approximately 100-200nm in size. The luminescence properties of ZnO:Eu3+ phosphor with 8 mol% doping concentration of Eu3+ is optimal.

Site specification on normal and magnetic XANES of ferrimagnetic Fe3O4 by means of resonant magnetic Bragg scattering

1998 ◽  
Vol 5 (3) ◽  
pp. 972-974 ◽  
Author(s):  
Kenji Kobayashi ◽  
Hiroshi Kawata ◽  
Koichi Mori
Keyword(s):  
Characteristic Feature ◽  
Electric Dipole ◽  
Octahedral Site ◽  
Tetrahedral Site ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Bragg Scattering ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

Resonant magnetic Bragg scattering (RMBS) for several reflections has been measured at the Fe K-edge in Fe3O4. The normal and magnetic X-ray absorption near-edge structure (XANES) for two types of Fe ion site (tetrahedral and octahedral) were successfully determined from the analysis of DAFS and RMBS spectra on the assumption that there was an electric dipole transition. The obtained normal XANES for the octahedral site is well explained as a mixture of Fe2+ and Fe3+ ions, and the characteristic feature of the magnetic XANES at the pre-edge peak is mainly contributed from the Fe3+ ion at the tetrahedral site.

scholarly journals Energies and electric dipole transitions for sodium-like gold

2016 ◽  
Vol 94 (11) ◽  
pp. 1167-1174 ◽  
Author(s):  
Gülay Günday Konan ◽  
Leyla Özdemir
Keyword(s):  
Structure Data ◽  
Atomic Structure ◽  
Electric Dipole ◽  
Transition Probabilities ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Experimental Results ◽  
Oscillator Strengths ◽  
Correlation Effects ◽  
Good Agreement

We have reported energies and electric dipole transition parameters, such as transition probabilities, oscillator strengths, line strengths, and wavelengths for Na-like gold (Au68+, Z = 79) using AUTOSTRUCTURE atomic code. Calculations include Breit and QED contributions besides correlation effects. A few of the results have been compared with available theoretical and experimental results in the literature. Our atomic structure data for sodium-like gold are in good agreement with others. Also we have presented new results for electric dipole transitions in sodium-like gold.

scholarly journals Electric-dipole transition probabilities between yrast bands in 157Gd

2003 ◽  
Vol 551 (1-2) ◽  
pp. 79-85 ◽  
Author(s):  
T Hayakawa ◽  
Y Toh ◽  
M Oshima ◽  
M Matsuda ◽  
Y Hatsukawa ◽  
...  
Keyword(s):  
Electric Dipole ◽  
Transition Probabilities ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Yrast Bands

scholarly journals Electric dipole transition probabilities, oscillator strengths, and lifetimes for Co16+

2016 ◽  
Vol 94 (1) ◽  
pp. 23-25 ◽  
Author(s):  
G. Çelik ◽  
Ş. Ateş ◽  
G. Tekeli
Keyword(s):  
Electric Dipole ◽  
Transition Probabilities ◽  
Transition Probability ◽  
Energy Levels ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Oscillator Strengths ◽  
Coupling Scheme ◽  
Wbepm Theory ◽  
First Time

The electric dipole transition probabilities, oscillator strengths, and lifetimes for Co16+ have been calculated within the weakest bound electron potential model (WBEPM) theory using experimental energy levels and theoretical expectation values of orbital radii corresponding to those energy levels under the assumption of the LS coupling scheme. In the calculations both multiplet and fine structure transitions are studied. The present results are consistent with earlier results given in the literature. Moreover, some transition probability and oscillator strength values not existing in the literature are reported for the first time.

Transition probabilities of neutral scandium

2014 ◽  
Vol 92 (11) ◽  
pp. 1425-1429 ◽  
Author(s):  
İ.K. Öztürk ◽  
G. Çelik ◽  
Y. Gökçe ◽  
B. Atalay ◽  
F. Güzelçimen ◽  
...  
Keyword(s):  
Fine Structure ◽  
Electric Dipole ◽  
Parametric Analysis ◽  
Transition Probabilities ◽  
Electric Dipole Transition ◽  
Dipole Transition ◽  
Quantum Defect ◽  
Oscillator Strengths ◽  
Orbital Theory ◽  
First Time

The electric dipole transition probabilities and the oscillator strengths of neutral scandium have been calculated using the quantum defect orbital theory and the Cowan code for the 3d4s2–3d4s4p, 3d24s–3d24p, and 3d4s2–4s24p transitions. In addition, a parametric analysis of the fine structure for the 3d4s2configuration of even parity is performed using Cowan code. The transition probabilities and the oscillator strengths obtained in this work are mostly in agreement with the data obtained from different theoretical works given in the literature. Moreover, transition probabilities for 24 levels of neutral scandium are given for the first time.

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