Open AccessEffect of lattice vibrations on magnetic properties of metals at finite temperatures
Author(s) -
Nikolai B. Melnikov,
G. V. Paradezhenko,
Boris I. Reser
Publication year - 2019
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1389/1/012099
Subject(s) - condensed matter physics , phonon , magnetism , lattice vibration , lattice (music) , electron , physics , metal , spin (aerodynamics) , materials science , quantum mechanics , thermodynamics , acoustics , metallurgy
We investigate the effect of electron-phonon interaction in the dynamic spin-fluctuation theory of metallic magnetism. Electron-phonon interaction is represented by fluctuations of the crystal lattice potential. We illustrate the theoretical results in the example of Fe and Ni. We show that the effect of phonons on temperature dependence of magnetic characteristics is appreciable in Fe, but not as large as in the static single-site spin-fluctuation theory and spin dynamics using classical Hamiltonians. On the contrary, in Ni the effect of phonons is small in agreement with the results of the spin dynamics.