Abstract
Volume behavior is often anomalous for T<Tc of an itinerant electron ferromagnet. Recently Kim pointed out that phonons also can be responsible for such anomalous behavior. Further to explore such possible role of phonons, in this paper we carry out a numerical calculation on the temperature dependences of phonon Debye temperature and Grüneisen constant of an itinerant electron ferromagnet by using a model electronic density of states. Our numerical results support our earlier conclusion and demonstrate the importance of taking into account the effect of the electron-phonon interaction in understanding the anomalous volume and elasticity behavior of an itinerant electron ferromagnet.
Published Version
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