[paper] Hyperfine field and hyperfine anomalies of copper impurities in iron

Hyperfine field and hyperfine anomalies of copper impurities in iron

V. V. Golovko et al.

doi: 10.1103/PhysRevC.84.014323

A new value for the hyperfine magnetic field of copper impurities in iron is obtained by combining resonance frequencies from experiments involving β-NMR on oriented nuclei on ⁵⁹Cu, ⁶⁹Cu, and ⁷¹Cu with magnetic moment values from collinear laser spectroscopy measurements on these isotopes. The resulting value, i.e., B_hf(CuFe) = -21.794(10) T, is in agreement with the value adopted until now but is an order of magnitude more precise. It is consistent with predictions from ab initio calculations. Comparing the hyperfine field values obtained for the individual isotopes, the hyperfine anomalies in Fe were determined to be ⁵⁹Δ⁶⁹=0.15(9)% and ⁷¹Δ⁶⁹=0.07(11)%.

Tags: 59Cu69Cu71Cub-NMRhyperfine fieldlaser spectroscopymagnetic moment