C-doped zigzag blue phosphorene nanoribbons for GMR, rectification behaviour and NDR based devices

Abstract

Based on density functional theory (DFT) and nonequilibrium Green's function (NEGF) framework, to study the monolayer (ML) blue phosphorene (BlueP) doped with C along zigzag direction, such as the structural stability, and electronic and transport properties. Interestingly, we found that doping engineering strategies can effectively transform monolayer ML ZBlueP doped with C into a spintronic nanodevice with a few unique transport properties. Firstly, our model showed a magnificently giant magnetoresistance (GMR) up to 10 under low bias. Secondly, a rectifier with a large rectification ratio (RR) of 10 was observed. Lastly, negative differential resistance with a peak-to-valley current ratio (PVCR) of 10 was observed. Our research shows a promising route towards the development of high-performance ML ZBlueP spintronics technology by doping with C atom. Our results indicate that our models have immense potential for application in nanoscale spintronic devices.