The antiferromagnetic topological insulator MnBi 2 Te 4 features lots of exotic physical phenomena at low temperatures, forging a new direction that joins topological materials with magnetic materials. Yet a missing ingredient in the grand inquiry into antiferromagnetic topological insulators is how the antiferromagnetic behavior can manifest in the quantum tunneling, which has wide applications in quantum computing and related applications. To this end, PI-Cheng’s group studied the transport properties of
This article was published in Physical Review Research and is available here .
Robust spin injection and detection in antiferromagnetic thin films is a prerequisite for the exploration of antiferromagnetic spin dynamics and the development of nanoscale antiferromagnet-based spintronic devices. Existing studies have shown spin injection and detection in antiferromagnet-nonmagnetic metal bilayers; however, spin injection in these systems has been found effective at cryogenic temperatures only. A recent experiment done by Prof. Igor Barsukov at UC-Riverside experimentally demonstrated si