Abstract
The hyperfine field of in natural iron has been measured by continuous-wave NMR in the temperature range 4.2-400 °K. The measurements below 32 °K follow a law and are in good agreement with the magnetization data. A single extra term in is sufficient to fit the hyperfine-field measurements, reduced to zero spin-wave gap, between 32 and 400 °K. The hyperfine coupling constant is temperature dependent, despite the agreement in the term found by magnetization and hyperfine field measurements, with the form .
- Received 26 February 1973
DOI:https://doi.org/10.1103/PhysRevB.8.5243
©1973 American Physical Society