  In this paper we study a hysteric phase transition from weak localization
phase to hysteric magnetoconductance phase using gauge/gravity duality. This
hysteric phase is triggered by a spontaneous magnetization related to Z2
symmetry and time reversal symmetry in a 2+1 dimensional system with momentum
relaxation. We derive thermoelectric conductivity formulas describing
non-hysteric and hysteric phases. At low temperatures, this magneto-conductance
shows similar phase transitions of topological insulator surface states. We
also obtain hysteresis curves of Seebeck coefficient and Nernst signal. It
turns out that our impurity parameter changes magnetic properties of the dual
system. This is justified by showing increasing susceptibility and the
spontaneous magnetization with increasing impurity parameter.
