“Metal-insulator transition of NdNiO3 nanogaps and angle-dependent magnetoresistance at Pt/YCrO3 interfaces”

Dr. Jin Hong Lee
Unité Mixte de Physique, CNRS

Feb. 9 (Tue.), 05:00 PM
Online seminar
https://kaist.zoom.us/j/86593232866
회의 ID: 865 9323 2866
암호: 404052

Abstract:
In this presentation, transition-metal oxide devices based on the first-order metal-insulator transition (MIT) of NdNiO3 (NNO) or the interfacial phenomena between antiferromagnetic YCrO3 (YCO) and heavy metal will be discussed. In the first part, the percolative electronic transport in NNO nanogaps is investigated by reducing the transport measurement area to dimensions comparable to the domain size of insulating and metallic NNO phases around the MIT temperature. In the second part, the antiferromagnetic properties along with weak ferromagnetism of YCO and the interfacial magneto-transport in Pt/YCO Hall bars are studied in order to understand the interplay between non-collinear magnetic YCO and non-magnetic metal with strong spin-orbit coupling.