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We study the magnetoelectric and magnetothermal transport properties ofnoncentrosymmetric metals using semiclassical Boltzmann transport formalism byincorporating the effects of Berry curvature and orbital magnetic moment. Theseeffects impart quadratic-B dependence to the magnetoelectric and magnetothermalconductivities, leading to intriguing phenomena such as planar Hall effect,negative magnetoresistance, planar Nernst effect and negative Seebeck effect.The transport coefficients associated with these effects show the usualoscillatory behavior with respect to the angle between the applied electricfield and magnetic field. The bands of noncentrosymmetric metals are split byRashba spin-orbit coupling except at a band touching point. For Fermi energybelow (above) the band touching point, giant (diminished) negativemagnetoresistance is observed. This difference in the nature ofmagnetoresistance is related to the magnitudes of the velocities, Berrycurvature and orbital magnetic moment on the respective Fermi surfaces, wherethe orbital magnetic moment plays the dominant role. The absolutemagnetoresistance and planar Hall conductivity show a decreasing (increasing)trend with Rashba coupling parameter for Fermi energy below (above) the bandtouching point.

Berry curvature induced magnetotransport in 3D noncentrosymmetric metals