Hall effect, electrical and magnetic resistance in Cd3As2 + MnAs (30%) composite at high pressures

Electrical resistivity ρ, Hall factor R H, magnetic resistance (R m–R 0)/R 0, and magnetic-field-dependent resistances were measured in 70 mol % Cd3As2 + 30 mol % MnAs composite at fixed values of high hydrostatic pressures (up to p ≤ 9 GPa). The ρ, R H, and (R m–R 0)/R 0 versus pressure curves feature a phase transition at p = 4–4.3 GPa. Field-dependent magnetic resistance features a negative pressure-induced trend.