Spin polarization ratios of resistivity and density of states estimated from anisotropic magnetoresistance ratio for nearly half-metallic ferromagnets

Satoshi Kokado, Yuya Sakuraba, Masakiyo Tsunoda

We derive a simple relational expression between the spin polarization ratio of resistivity, $P_{\rho }$, and the anisotropic magnetoresistance ratio $\Delta \rho /\rho$, and that between the spin po…