2009/01/08 by K. Minamisono, K. Matsuta, T. Minamisono +9
Chemistry · Physics and Astronomy · #Advanced NMR Techniques and Applications #Atomic physics #Chemistry #Coupling (piping) #Coupling constant #Crystal (programming language) #Electric field gradient #Hyperfine structure #Materials science #Neutron #Nuclear Physics and Applications #Nuclear magnetic resonance #Nuclear physics #Nuclear physics research studies #Physics #Quadrupole #nucl-ex
paper · pdf · doi:10.1016/j.physletb.2009.01.006
published as Phys.Lett.B672:120-125,2009 · Accepted for publication in Physics Letters B
arxiv created 2009/01/08 · openalex publication_date 2009/01/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
The electric-quadrupole coupling constant of the ground states of the proton drip line nucleus 20Na (Iπ=2+, T1/2=447.9ms) and the neutron-deficient nucleus 21Na (Iπ=3/2+, T1/2=22.49s) in a hexagonal ZnO single crystal were precisely measured to be |eqQ/h|=690±12kHz and 939±14kHz, respectively, using the multi-frequency β-ray detecting nuclear magnetic resonance technique under presence of an electric-quadrupole interaction. An electric-quadrupole coupling constant of 27Na in the ZnO crystal was also measured to be |eqQ/h|=48.4±3.8kHz. The electric-quadrupole moments were extracted as |Q(Na20)|=10.3±0.8efm2 and |Q(Na21)|=14.0±1.1efm2, using the electric-coupling constant of 27Na and the known quadrupole moment of this nucleus as references. The present results are well explained by shell-model calculations in the full sd-shell model space.