Nuclear Magnetic Resonance ofNi61in Dilute Alloys of Nickel in Cobalt

Abstract
The nuclear magnetic resonance of Ni61 has been observed in 1% Ni61-99% Co and 2% Ni61-98% Co alloys. The resonance frequency is 70.4 Mc/sec at room temperature and 71.7 Mc/sec at 77°K. The hyperfine field at nickel in cobalt is about two and a half times its value in pure nickel, implying a nearly proportional increase in the local magnetic moment.