Electronic structure and spontaneous magnetization in Mn-doped SnO2
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Journal of Applied Physics
© 2020 Author(s). Mn-doped SnO 2 is a promising dilute magnetic semiconductor; however, there are many inconsistent reports on the magnetic ordering in the literature. We investigate the magnetic ordering and the local electronic structure in stoichiometric and Mn-doped (with Mn concentrations of 1 at.%, 3 at.%, and 6 at.%) SnO 2 using magnetization measurements, Mn L 2, 3-edge and O K-edge x-ray absorption fine structure measurements, and density functional theory and model Hamiltonian calculations. We find that paramagnetic and ferromagnetic behavior is present as a function of Mn concentration and, in particular, that paramagnetic, ferromagnetic, and antiferromagnetic order coexist independently in Mn(6%):SnO 2. Simultaneously, we find that Mn 2 +, Mn 3 +, and Mn 4 + also coexist in Mn(6%):SnO 2. These findings demonstrate the care needed to study Mn:SnO 2 and point to the wealth of magnetic behaviors that might be realized with careful control of synthesis conditions.
Naji Aljawfi, R.
Hwa Chae, K.
(2020). Electronic structure and spontaneous magnetization in Mn-doped SnO2. Journal of Applied Physics, 128(4),
Naji Aljawfi, Rezq, et al.
"Electronic structure and spontaneous magnetization in Mn-doped SnO2." Journal of Applied Physics, vol. 128,no. 4, 2020,