Pressure Shifts in the Hyperfine Structure Constant of Potassium

1960 ◽  
Vol 119 (6) ◽  
pp. 1946-1947 ◽  
Author(s):  
Arnold L. Bloom ◽  
John B. Carr
Keyword(s):  
Hyperfine Structure ◽  
Structure Constant ◽  
Hyperfine Structure Constant

Level-Crossing-Untersuchung der Hyperfeinstruktur von Sn117 und Sn119 im (5p6s) 3P10-Term des Sn I-Spektrums

1967 ◽  
Vol 22 (12) ◽  
pp. 2001-2004 ◽  
Author(s):  
M. Brieger ◽  
P. Zimmermann
Keyword(s):  
Stable Isotopes ◽  
Hyperfine Structure ◽  
Structure Constant ◽  
Level Crossing ◽  
Hyperfine Structure Constant ◽  
Mean Lifetime

Using the level-crossing technique the following relations between the hyperfine structure constant A and the gj value of the (5p6s)3P10-term were determined for both the stable isotopes Sn117 and Sn119:A117 = — 159,57(4) mK · gJ/1,380; A119 = — 167,01(4) mK · gJ/1,380.From the width of the level-crossing signal a mean lifetime τ = 4,5(7) · 10-9 sec was deduced.

Theoretical Studies of the EPR g Factors and the Hyperfine Structure Constants of Cr3+ in MgS and SrS

2003 ◽  
Vol 58 (9-10) ◽  
pp. 503-506
Author(s):  
Shao-Yi Wu ◽  
Xiu-Ying Gao ◽  
Wei-Zi Yan
Keyword(s):  
Hyperfine Structure ◽  
Coupling Coefficient ◽  
Structure Constant ◽  
Theoretical Studies ◽  
Spin Orbit ◽  
Cluster Approach ◽  
Hyperfine Structure Constant ◽  
Structure Constants ◽  
G Factors

The EPR g factors and the hyperfine structure constant A factors for Cr3+ in MgS and SrS are theoretically studied by using the two-spin-orbit (S.O.)-coupling-coefficient formulas for a 3d3 ion in octahedra based on the cluster approach. In these formulas, both the contributions due to the S.O. coupling coefficient of the central 3d3 ion and that of ligands are taken into account. Based on these studies, the g and A factors of Cr3+ in both MgS and SrS are satisfactorily explained. The results are discussed.

Studies on the g Factor and Hyperfine Structure Constant for Ir4+ in CdO

2013 ◽  
Vol 344 ◽  
pp. 85-88
Author(s):  
Xian Fen Hu ◽  
Shao Yi Wu ◽  
Chang Chun Ding
Keyword(s):  
Experimental Data ◽  
Hyperfine Structure ◽  
Structure Constant ◽  
Cluster Approach ◽  
G Factor ◽  
Hyperfine Structure Constant ◽  
High Impurity ◽  
Ligand Orbital ◽  
Account Due ◽  
Good Agreement

The isotropic g factor and hyperfine structure constant for Ir4+in CdO are theoretically studied from the perturbation formulas of these parameters for an octahedral 5d5cluster based on the cluster approach. The calculated results show good agreement with the experimental data. The ligand orbital contributions should be taken into account due to significant covalency of the system with high impurity valence state even in the oxide.

Covalency and EPR hyperfine structure constant of Eu2+ in crystals

1986 ◽  
Vol 119 (2) ◽  
pp. 92-94 ◽  
Author(s):  
Al. Nicula ◽  
O. Panǎ ◽  
L.V. Giurgiu
Keyword(s):  
Hyperfine Structure ◽  
Structure Constant ◽  
Hyperfine Structure Constant

scholarly journals Hyperfine Structure Constant of the Neutron Halo NucleusBe+11

2014 ◽  
Vol 112 (16) ◽  
Author(s):  
A. Takamine ◽  
M. Wada ◽  
K. Okada ◽  
T. Sonoda ◽  
P. Schury ◽  
...  
Keyword(s):  
Hyperfine Structure ◽  
Structure Constant ◽  
Neutron Halo ◽  
Hyperfine Structure Constant

Studies of the Spin Hamiltonian Parameters for Cubic V2+, Cr3+, and Mn4+ Centers In MgO and CaO, Based on Two Mechanism Models

2004 ◽  
Vol 59 (10) ◽  
pp. 689-693 ◽  
Author(s):  
Shao-Yi Wu ◽  
Hui-Ning Dong
Keyword(s):  
Charge Transfer ◽  
Hyperfine Structure ◽  
Crystal Field ◽  
Structure Constant ◽  
Order Perturbation ◽  
Spin Hamiltonian ◽  
Mechanism Model ◽  
Hyperfine Structure Constant ◽  
Hamiltonian Parameters ◽  
Theoretical Results

The high-order perturbation formulas of the spin Hamiltonian (SH) parameters g-shift Δg (=g−gs) and the hyperfine structure constant A for a 3d3 ion in cubic octahedra are established, based on the two mechanism model. In this model, not only the contributions from the conventional crystal-field (CF) mechanism, but also those from the charge-transfer (CT) mechanism are taken into account. These formulas are applied to the investigation of the SH parameters of cubic V2+, Cr3+ and Mn4+ centers in MgO and CaO. Based on these studies, the sign of Δg due to the CT mechanism is opposite to that due to the CF mechanism, while the signs of the A factor due to the CF and CT mechanisms are equal. The theoretical results, including the contributions from the CF and CT mechanisms, agree better with the observed values than those containing only the conventional CF mechanism.

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