Abstract

Magnetic properties of molybdenum doped methylammonium lead halides (MAPbX3, X = Cl, Br, I) system has been studied using density functional theory for the very first time. Spin-polarized magnetic calculations indicate that the doping of Mo-atoms at Pb-site generates a significant magnetic moment in all the three MAPbX3 systems, where the d-orbital electrons of the dopant primarily generate the induced magnetism in the system. The Spin density distribution and Bader charge analysis also support that the magnetic moment is concentrated around the dopant. The unpaired spins of the Mo-dopants prefer parallel alignment, which makes a stable ferromagnetic spin ordered system. The defect formation energy of the Mo-doping at Pb-site is also small, which makes it a potential candidate for spintronics application.

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