Observation of Resistive Transitions in Copper Due to Proximity to a Frustrated Antiferromagnetic Insulator

This work experimentally explores the induction of resistive transitions in a metal through the magnetic proximity effect, focusing specifically on the transitions in the electrical resistance of copper induced by the magnetic transitions of copper oxychloride. The findings unveiled a sharp drop in the electrical resistance of the conductive channel within the metallized regime, precisely coinciding with the magnetic transitions of copper oxychloride. The study’s findings align with prior research on spin resistivity in frustrated antiferromagnet, and this phenomenon can be attributed to the induction of triplet states within the metallic layer via the magnetic proximity effect. These insights hold the potential to unlock new avenues for the investigation of spintronic devices and magnetic interface phenomena.