Electromagnetic properties of nuclei and nuclear structure

Physica ◽  
1951 ◽  
Vol 17 (3-4) ◽  
pp. 461-483 ◽  
Author(s):  
L Rosenfeld
2011 ◽  
Vol 8 (3) ◽  
pp. 772-780
Author(s):  
Baghdad Science Journal

The Nuclear structure of 110-116Cd isotopes was studied theoretically in the framework of the interacting boson model of IBM-l and IBM-2. The properties of the lowest mixed symmetry states such as the 1+, 2+ and 3+ levels produced by the IBM-2 model in the vibrational-limit U(5) of Cd - isotopes are studied in details. This analysis shows that the character of mixed symmetry of 2+ is shared between and states in 110-114Cd – isotopes, the large shar goes to s, while in isotope, the state is declared as a mixed symmetry state without sharing. This identification is confirmed by the percentage of F-spin contribution. The electromagnetic properties of E2 and Ml operators were investigated and the results were analyzed. Various values of eB in the IBM-l and fixed e?= 0.104 eb and e?=0.093 e.b in the IBM-2 are used to generate the B(E2) and Q(2+). Fixed values of g? =0.31?N and g? =-0.31?N were adopted to generate the B(Ml) and ?(E2/ Ml) mixing ratios. The small values of ?(E2/Ml) which obtained for transition from MS- states to those of full symmetry support the conclusion that there may be a strong Ml transition between these states.


1942 ◽  
Vol 62 (3-4) ◽  
pp. 118-126 ◽  
Author(s):  
S. T. Ma ◽  
F. C. Yu

1997 ◽  
Vol 06 (02) ◽  
pp. 287-300 ◽  
Author(s):  
Giuseppe Maino

I present an algebraic model and the relevant computing code for the analysis of low-energy spectra and electromagnetic properties of nuclei with an odd number of neutrons and/or protons within the framework of the Interacting Boson–Fermion Model (IBFM), taking explicitly into account the isospin degree of freedom. Some results for odd–mass and doubly–odd nuclei in the shape-transitional region around A ≈ 100 will be shown and compared with the experimental data.


Author(s):  
I-Fei Tsu ◽  
D.L. Kaiser ◽  
S.E. Babcock

A current theme in the study of the critical current density behavior of YBa2Cu3O7-δ (YBCO) grain boundaries is that their electromagnetic properties are heterogeneous on various length scales ranging from 10s of microns to ˜ 1 Å. Recently, combined electromagnetic and TEM studies on four flux-grown bicrystals have demonstrated a direct correlation between the length scale of the boundaries’ saw-tooth facet configurations and the apparent length scale of the electrical heterogeneity. In that work, enhanced critical current densities are observed at applied fields where the facet period is commensurate with the spacing of the Abrikosov flux vortices which must be pinned if higher critical current density values are recorded. To understand the microstructural origin of the flux pinning, the grain boundary topography and grain boundary dislocation (GBD) network structure of [001] tilt YBCO bicrystals were studied by TEM and HRTEM.


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