Finite-temperature magnetism of disordered Fe-V alloys

摘要: The finite-temperature magnetism of disordered Fe-V alloys changes continuously from the local-moment type to itinerant as a function composition. This is investigated using theory local-environment effect (LEE) by means functional-integral method. magnetization, distributions, Curie temperature, high-field susceptibility, paramagnetic and internal-field distribution with respect $^{57}\mathrm{Fe}$ are calculated functions concentration temperature. Although magnetization decreases monotonically increasing V concentration, temperature shows maximum. shown be due both character alloying effect. strong LEE on amplitude local moments explains observed broad distributions. Induced types Fe coexist in concentrated because LEE. A rapid increase effective Bohr magneton number susceptibility found near critical at which ferromagnetism disappears. validity also examined comparing present results those cluster coherent-potential-approximation calculations low temperatures.