Structural and Magneto-Electronic Properties of Transition Metal Doped Phosphorus Nanotubes
Abstract
One-dimensional phosphorus nanotubes (PNTs) are important derivatives of phosphorene. Here, the magneto-electronic properties for PNTs with low-concentration transition metal (TM) (Fe, Co, and Ni) doping in their inner and outer layers are investigated in detail. TM-PNTs are very stable with a highly structural integrity and very versatile with rich magnetic properties. In particular, some important magnetic natures such as half-metallic and dilute magnetic semiconducting behaviors can be observed, which are basis for spintronic applications. Furthermore, the electric field can induce magnetic phase transitions, and the demagnetization behavior can occur under a very low electric field for Co-doping in the outer layer of PNT. This interesting feature is very attractive for constructing electric-field-controllable magnetic/nonmagnetic switch devices which are operated in two possible states.