Ground state hyperfine structures and nuclear quadrupole moments of95Mo and97Mo

Abstract
Hyperfine structure interval in the 4d55s 7S3 atomic ground state of 95Mo and 97Mo have been measured by the methods of atomic beam magnetic resonance. A theory of quadrupole interactions in half filled atomic shells, known to be successful in several other cases, has been used to obtain the nuclear quadrupole moments from the B values with the results Q(95Mo)=-0.075(25) barns and Q(97Mo)=+0.15(4) barns. The atomic beam was produced by collimating atoms evaporating from a 2 mm diameter molten ball of molybdenum suspended on the end of a 0.3 mm diameter molybdenum wire.