Abstract
The hyperfine field of argon in nickel is measured to be 280\ifmmode\pm\else\textpm\fi{}23 kG using the technique of time-differential perturbed angular correlations. The argon nuclei were recoil implanted in nickel by the $^{39}\mathrm{K}(d, \ensuremath{\alpha})^{37}\mathrm{Ar}$ reaction. The second excited state of $^{37}\mathrm{Ar}$ at 1610 keV was used in this measurement. The unperturbed ${\ensuremath{\alpha}}_{2}\ensuremath{-}1610$-keV $\ensuremath{\gamma}$-ray angular correlation was studied with a copper backing for the target, and values ${A}_{2}=0.265\ifmmode\pm\else\textpm\fi{}0.057$ and ${A}_{4}=\ensuremath{-}0.222\ifmmode\pm\else\textpm\fi{}0.098$ were obtained for the correlation coefficients. The amplitude of modulation of the time spectrum is found to be very small. This may be interpreted by assuming that the hyperfine field acts only on a small fraction of the implanted nuclei.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
