Abstract
The low-temperature behavior of magnetization in ferromagnetic metals is studied by means of the dynamic spin-fluctuation theory. An expression is derived for the dynamic magnetic susceptibility, which extends the one in the random phase approximation. The transverse susceptibility is shown to have the spin-wave poles, which yield the asymptotic T 3/2 law for magnetization. An explicit expression for the coefficient in the T 3/2 law is derived on the basis of the multiband Hubbard Hamiltonian and real band structure. The temperature dependence of magnetization is demonstrated by the example of Fe and disordered Fe-Ni Invar.
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.
