Quadrupole resonance lines of β-unstable 12B have been distinctly resolved in a single crystal of Be, and have behaved properly under field reversal and variation of the angle θ between crystal c axis and external magnetic field.
© 1972 American Physical Society
Williams Jr., R. L., Richard C. Haskell, and L. Madansky. "Nuclear quadrupole coupling of B-12 in a single Be crystal." Physical Review C 5.4 (1972): 1435-1437. DOI: 10.1103/PhysRevC.5.1435