The present disclosure relates to magnetic memory device. The magnetic memory device includes a bottom electrode, a selector layer disposed over the bottom electrode, and a MTJ stack disposed over the selector layer and comprising a reference layer and a free layer disposed over the reference layer and separated from the reference layer by a tunneling barrier layer. The magnetic memory device further includes a modulating layer disposed over the MTJ stack and a top electrode disposed over the switching threshold modulating layer. The selector layer is configured to switch current on and off based on applied bias.