Polarizabilities and hyperfine structure constants of the low-lying levels of barium

1999 ◽  
Vol 5 (1) ◽  
pp. 59-63 ◽  
Author(s):  
M.G. Kozlov ◽  
S.G. Porsev
Keyword(s):  
Hyperfine Structure ◽  
Structure Constants

Isotope shift and hyperfine structure in the atomic spectrum of tin

1973 ◽  
Vol 332 (1588) ◽  
pp. 129-138 ◽  
Keyword(s):  
Stable Isotopes ◽  
Hyperfine Structure ◽  
Nuclear Charge ◽  
Light Sources ◽  
Atomic Spectrum ◽  
Nuclear Charge Distribution ◽  
Fabry Perot ◽  
Self Consistent ◽  
Structure Constants ◽  
Good Agreement

Three lines in the atomic spectrum of tin, λ 3262 Å, λ 3283 Å and λ 6454Å have been studied in emission under high resolution with the use of light sources containing enriched isotopic samples. Results are reported for isotope shifts in these lines for the abundant stable isotopes ( A ≽ 116). Pressure-scanned Fabry–Perot etalons provided the necessary resolution; the spectrograms for λ 6454 Å were recorded and analysed by digital techniques, and for this line hyperfine structure constants required in the interpretation of the data were also evaluated. The results for the three lines are not in good agreement with earlier work, but are shown to be self-consistent by means of a King plot. Their interpretation in terms of the nuclear charge distribution is considered in the following paper.

Electronic Structure and Hyperfine Structure Constants of NO Molecule

1960 ◽  
Vol 33 (3) ◽  
pp. 878-881 ◽  
Author(s):  
Chun C. Lin ◽  
Katsunori Hijikata ◽  
Michiko Sakamoto
Keyword(s):  
Electronic Structure ◽  
Hyperfine Structure ◽  
Structure Constants

Investigation of the Spin Hamiltonian Parameters of Yb3+ in CaWO4 Crystal

2004 ◽  
Vol 59 (12) ◽  
pp. 943-946 ◽  
Author(s):  
Hui-Ning Dong ◽  
Shao-Yi Wu
Keyword(s):  
Hyperfine Structure ◽  
Local Structure ◽  
Reasonable Agreement ◽  
Second Order ◽  
Order Perturbation ◽  
Superposition Model ◽  
Spin Hamiltonian ◽  
Structure Constants ◽  
Hamiltonian Parameters ◽  
G Factors

In this paper, the spin Hamiltonian parameters g factors g∥ and g⊥ of Yb3+ and hyperfine structure constants A∥ and A⊥ of 171Yb3+ and 173Yb3+ in CaWO4 crystal are calculated from the two-order perturbation formulae. In these formulae, the contributions of the covalence effects, the admixture between J =7/2 and J =5/2 states as well as the second-order perturbation are included. The needed crystal parameters are obtained from the superposition model and the local structure of the studied system. The calculated results are in reasonable agreement with the observed values. The results are discussed.

Lifetime and hyperfine structure constants of the state in41K

1985 ◽  
Vol 110 (4) ◽  
pp. 203-205 ◽  
Author(s):  
M. Głódź ◽  
M. Kraińska-Miszczak
Keyword(s):  
Hyperfine Structure ◽  
The State ◽  
Structure Constants

STUDIES OF THE SPIN-HAMILTONIAN PARAMETERS AND OPTICAL SPECTRUM BAND POSITIONS FOR THE Yb3+ ION IN Tm3Al5O12 CRYSTALS

2009 ◽  
Vol 23 (20n21) ◽  
pp. 2457-2462 ◽  
Author(s):  
HONG-GANG LIU ◽  
WEN-CHEN ZHENG ◽  
WEN-LIN FENG ◽  
WEI-QING YANG
Keyword(s):  
Hyperfine Interaction ◽  
Hyperfine Structure ◽  
Matrix Method ◽  
Optical Spectrum ◽  
Spin Hamiltonian ◽  
Energy Matrix ◽  
Interaction Terms ◽  
Structure Constants ◽  
Spectrum Band ◽  
Hamiltonian Parameters

The spin-Hamiltonian parameters (g factors gi and hyperfine structure constants Ai, where i = x, y, z) and optical spectrum band positions of the Yb 3+ ion in the rhombically-distorted Tm 3+ site of Tm 3 Al 5 O 12 garnet crystal are calculated by a complete diagonalization (of the energy matrix) method, in which the Zeeman and hyperfine interaction terms are also included in the conventional Hamiltonian. From the calculations, the observed spin-Hamiltonian parameters of Tm 3 Al 5 O 12: Yb 3+ are explained reasonably and the optical spectrum band positions are suggested. The rationality of these suggested optical spectrum band positions is discussed by comparing them with the observed values of Yb 3+ ions in similar aluminum garnet ( Yb 3 Al 5 O 12, Y 3 Al 5 O 12 and Lu 3 Al 5 O 12) crystals.

HYPERFINE STRUCTURE CONSTANTS OF ENERGETICALLY HIGH-LYING LEVELS OF ODD PARITY OF ATOMIC VANADIUM

2014 ◽  
Vol 214 (1) ◽  
pp. 9 ◽  
Author(s):  
F. Güzelçimen ◽  
B. Yapıcı ◽  
G. Demir ◽  
A. Er ◽  
I. K. Öztürk ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Structure Constants

Theoretical Studies on the Gyromagnetic Factors and the Hyperfine Structure Constants for the Tetragonal Copper Center in KTaO3

2005 ◽  
Vol 60 (8-9) ◽  
pp. 615-618 ◽  
Author(s):  
Hui-Ning Dong
Keyword(s):  
Experimental Data ◽  
Electron Paramagnetic Resonance ◽  
Hyperfine Structure ◽  
Defect Structure ◽  
Electrostatic Repulsion ◽  
Theoretical Studies ◽  
Paramagnetic Resonance ◽  
Copper Center ◽  
Structure Constants ◽  
Electron Paramagnetic

The gyromagnetic factors g∥, g⊥ and the hyperfine structure constants A∥ and A⊥ of the tetragonal Cu2+ center in KTaO3 are theoretically studied in this work. Based on the analyses of the electron paramagnetic resonance results of this center, it is found that the impurity Cu2+ occupies the octahedral Ta5+ site, associated with a nearest-neighbouring oxygen vacancy VO along the C4 axis. Due to the electrostatic repulsion of VO, Cu2+ is displaced away from VO by ΔZ(≈ −0.29 Å ) along the C4 axis. The theoretical values of the g and A factors based on the above defect structure and the impurity displacement agreee reasonably with the experimental data.

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