Magnetic moment of 48Sc

Nuclear magnetic resonances were measured for 48Sc and 44mSc oriented at 8 mK in an Fe host metal. The magnetic hyperfine splitting frequencies at an external magnetic field of 0.2 T were determined to be 63.22(11) MHz and 64.81(1) MHz for 48Sc and 44mSc, respectively. With the known magnetic moment of \(\mu \left( {^{44{\rm m}}\mbox{Sc}} \right)=+3.88\left( 1 \right) \mu _N \), the magnetic moment of 48Sc is deduced as \(\left| {\mu \left( {^{48}\mbox{Sc}} \right)} \right|=3.785\left( {12} \right)\mu _N \). The measured magnetic moment of 48Sc is discussed in terms of the shell model using the effective interactions.