Nuclear magnetic resonance of 9Be atoms by charge exchange with optically pumped 9Be+ ions

NMR of free ${}^9\text{Be}\text{(I =}\text{3}\text{2}\text{)}{}^1\text{S}{}_0$ atoms is observed via resonant charge exchange with optically pumped ${}^9\text{Be}{}^{\mathrm{+}}{}^2\text{S}{}_{\mathrm{<mtext>1</mtext><mtext>2</mtext>}}$ ions in He buffer gas, yielding $\text{μ(}{}^9\text{Be}\text{) = ?1.1778 (9) μ}{}_{\mathrm{<mtext>n</mtext>}}$. Applications of the method suitable for all group II elements and Yb include: precision measurements of nuclear moments, chemical shifts, hfs-anomalies, and investigation of charge exchange processes.