Abstract
We investigated the electronic and magnetic properties of pure and defected single-wall (6,0) chiral ZnO nanotubes. In a consecutive DFT-LSDA+U electronic structure simulation, influence on the nature and origin of ferromagnetism (FM) are studied for an Ag-doped single-walled ZnO nanotube system. The configurations with zinc host atoms replaced by silver atoms are p-type materials. For the Ag-doped ZnO nanotube (ZnONT) configurations, the energy gap decreases with the impurity concentration. The total energy calculations for Ag-doped ZnONT systems show the stability of the ferromagnetic phase. In the case of Ag do** and with Zn vacancy, the wide energy gap decrease and the total magnetic moment of this system increase by ~ 2 µB compared with the free vacancy case. From first-principles calculations, it shows that ZnO:Ag NT systems are semi-magnetic ferromagnetic materials, and it is a promising candidate for spintronics device applications.
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Jafarova, V.N., Scurtu, I.C., Stanca, C. et al. Defect influence on the electronic and magnetic properties of silver-doped (6,0) single-walled ZnO nanotubes: a first-principles study. Indian J Phys 98, 2335–2346 (2024). https://doi.org/10.1007/s12648-023-03044-9
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DOI: https://doi.org/10.1007/s12648-023-03044-9