Deviations from Matthiessen’s rule and resistivity saturation effects in Gd and Fe from first principles

  title={Deviations from Matthiessen’s rule and resistivity saturation effects in Gd and Fe from first principles},
  author={James K. Glasbrenner and Bhalchandra S. Pujari and K. D. Belashchenko},
  journal={Physical Review B},
According to earlier first-principles calculations, the spin-disorder contribution to the resistivity of rare-earth metals in the paramagnetic state is strongly underestimated if Matthiessen's rule is assumed to hold. To understand this discrepancy, the resistivity of paramagnetic Fe and Gd is evaluated by taking into account both spin and phonon disorder. Calculations are performed using the supercell approach within the linear muffin-tin orbital method. Phonon disorder is modeled by… 

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