Symplectic no-core shell-model approach to intermediate-mass nuclei

Ising core-shell model was proposed to reconstruct superparamagnetism hysteresis in nano-goethite (α-FeOOH). Core and shell set as antiferromagnetic and paramagnetic state respectively. Core and shell radius varies until the theoretical hysteresis fit with experiment hysteresis. At low temperature, the hysteresis reconstructed nicely with 55% antiferromagnetic core contribution and 45% paramagnetic shell contribution. At high temperature, the core-shell model show unrealistic result compared to the pure paramagnetic state.

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Seed-Mediated Synthesis and Characterization of ZnO@γ-Fe2O3 Nanospheres: Building up the Core-Shell Model

Journal of Crystal Growth ◽

10.1016/j.jcrysgro.2021.126279 ◽

2021 ◽

pp. 126279

Author(s):

Sameh I. Ahmed

Keyword(s):

Shell Model ◽

Synthesis And Characterization ◽

Core Shell ◽

The Core ◽

Seed Mediated

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Be7(p,γ)B8Sfactor fromab initiono-core shell model wave functions

Physical Review C ◽

10.1103/physrevc.73.065801 ◽

2006 ◽

Vol 73 (6) ◽

Cited By ~ 35

Author(s):

P. Navrátil ◽

C. A. Bertulani ◽

E. Caurier

Keyword(s):

Shell Model ◽

Wave Functions ◽

Core Shell ◽

Model Wave

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No-Core Shell Model for Nuclear Systems with Strangeness

Few-Body Systems ◽

10.1007/s00601-014-0848-9 ◽

2014 ◽

Vol 55 (8-10) ◽

pp. 857-860 ◽

Cited By ~ 9

Author(s):

D. Gazda ◽

J. Mareš ◽

P. Navrátil ◽

R. Roth ◽

R. Wirth

Keyword(s):

Shell Model ◽

Core Shell ◽

Nuclear Systems

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Shell model description of heavy nuclei and abnormal collective motions

EPJ Web of Conferences ◽

10.1051/epjconf/201817802015 ◽

2018 ◽

Vol 178 ◽

pp. 02015

Author(s):

Chong Qi

Keyword(s):

Shell Model ◽

Degrees Of Freedom ◽

Large Scale ◽

Model Description ◽

Heavy Nuclei ◽

Collective Models ◽

Collective Behaviors ◽

Electromagnetic Transition ◽

Nuclear Shell ◽

Model Approach

In this contribution I present systematic calculations on the spectroscopy and electromagnetic transition properties of intermediate-mass and heavy nuclei around 100Sn and 208Pb. We employed the large-scale configuration interaction shell model approach with realistic interactions. Those nuclei are the longest isotopic chains that can be studied by the nuclear shell model. I will show that the yrast spectra of Te isotopes show a vibrational-like equally spaced pattern but the few known E2 transitions show rotational-like behaviour. These kinds of abnormal collective behaviors cannot be reproduced by standard collective models and provide excellent background to study the competition of single-particle and various collective degrees of freedom. Moreover, the calculated B(E2) values for neutron-deficient and heavier Te isotopes show contrasting different behaviours along the yrast line, which may be related to the enhanced neutron-proton correlation when approaching N=50. The deviations between theory and experiment concerning the energies and E2 transition properties of low-lying 0+ and 2+ excited states and isomeric states in those nuclei may provide a constraint on our understanding of nuclear deformation and intruder configuration in that region.

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