g-Factor of the Ground State of ⁷³Se

抄録

Nuclear magnetic resonance on oriented ⁷³Se in an iron host has been observed at about 7 mK. From resonance-shift measurement, the magnetic hyperfine-splitting frequency ν_M, g-factor and magnetic hyperfine field were derived as ν_M=102.61(3) MHz, |g(9⁄2⁺)|=0.188(16) and B_HF(⁷³SeFe)=716(81) kG. The experimental values of the g-factors of the g_9⁄2 neutron states, in the neighborhood of the neutron number 40, are compared with the theoretical values based on the core-polarization model.