Temperature Dependences of Electrical Resistivity in MnP

Abstract

Temperature dependences of electrical resistivities in the screw-, ferromagnetic- and fan-phases of MnP have been studied. In the screw phase, T² dependences are observed in the a-, b- and c-axis resistivities up to about 50 K and the coefficients are 4.3, 2.2 and 2.2×10⁻³ μΩcm/deg², respectively. In the ferromagnetic- and fan-phases, too, the T² dependences are observed and the coefficients are 4.0 and 5.2×10⁻³ μΩcm/deg², respectively. The observation of the T² dependence in different magnetic phases and the large value of the coefficients seem to suggest that the electron-electron scattering is dominant at low temperature and the Fermi surfaces are constructed only with the d like electrons. This is consistent with the results of electronic specific heat measurements done before.