Electronic structure and spontaneous magnetization in Mn-doped SnO2
Funding Number
21650410656
Funding Sponsor
Soochow University
Author's Department
Physics Department
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https://doi.org/10.1063/5.0012415
Document Type
Research Article
Publication Title
Journal of Applied Physics
Publication Date
7-28-2020
doi
10.1063/5.0012415
Abstract
© 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.
Recommended Citation
APA Citation
Naji Aljawfi, R.
Abu-Samak, M.
Swillam, M.
Hwa Chae, K.
...
(2020). Electronic structure and spontaneous magnetization in Mn-doped SnO2. Journal of Applied Physics, 128(4),
10.1063/5.0012415
https://fount.aucegypt.edu/faculty_journal_articles/1457
MLA Citation
Naji Aljawfi, Rezq, et al.
"Electronic structure and spontaneous magnetization in Mn-doped SnO2." Journal of Applied Physics, vol. 128,no. 4, 2020,
https://fount.aucegypt.edu/faculty_journal_articles/1457