Abstract
The magnetic susceptibility \ensuremath{\chi}, the Knight shift K, and the nuclear spin-lattice relaxation rate 1/${T}_{1}$ have been measured in Y(${\mathrm{Co}}_{1\mathrm{\ensuremath{-}}\mathrm{x}}$${\mathrm{Al}}_{\mathrm{x}}$${)}_{2}$ over a wide concentration range of Al from a nearly ferromagnetic to a weakly ferromagnetic phase. The values of 1/${T}_{1}$T from low temperature to high temperature were found to be well described by the self-consistent renormalization theory of spin fluctuations. From the analysis of 1/${T}_{1}$T the characteristic energy width of the dynamical spin-fluctuation spectrum is systematically estimated through this concentration range. It was found that these widths have quite different values on both sides of the critical concentration x=0.12, suggesting a discontinuous electronic-state change with the onset of weak itinerant ferromagnetism.
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.
