@article{dcacc529e8d84df5845b4eda4ee955b1,
title = "Doping and defect engineering induced extremely high magnetization and large coercivity in Co doped MoTe2",
abstract = "Magnetism in layered two dimensional materials has attracted extensive interest. In this work, a variety of concentrations of Co dopants (1, 2 and 4 at.%) were doped into MoTe2 single crystal by ion implantation. Magnetic results indicate that pure MoTe2 displays a diamagnetic behavior. A small amount of Co doping induces a very high saturation magnetization. 4 % Co doping exhibits a saturation magnetization as high as 2231 emu/cm3, higher than pure metallic Fe (1958 emu/cm3). In addition, an outsized coercivity of 11 kOe was also detected in the 2 at.% Co doped MoTe2 sample, which may be a consequence of doping-induced defects in the lattice structure, stress, anisotropic geometry of Co-Te ions and pinning effects by the defects in-between the ions. First principles density functional theory calculations reveal that doping-induced structural defects, including substitutional and interstitial Co, nanoholes as well as interstitial Mo, are responsible for the high magnetization.",
keywords = "Diluted magnetic semiconductor (DMS), Ferromagnetism, Ion Implantation, Transition metal dichalcogenides (TMDCs)",
author = "S. Ahmed and Cui, {X. Y.} and Murmu, {Peter P.} and X. Ding and Chu, {X. Z.} and Sathish, {C. I.} and Bao, {N. N.} and R. Liu and Zhao, {W. Y.} and J. Kennedy and T. Tan and M. Peng and L. Wang and J. Ding and Tom Wu and Wang, {X. L.} and S. Li and A. Vinu and Ringer, {S. R.} and Yi, {J. B.}",
note = "Funding Information: This work is funded by Australian Research Council Future Fellowship FT160100205. We acknowledge the expert support provided by the Sydney Informatics Hub (SIH) team—a core research facility of the University of Sydney. This work was supported by computational resources provided by the Australian Government through Gadi under the National Computational Merit Allocation Scheme and was accessed through the SIH HPC Allocation Scheme [LE190100021]. Funding Information: This work is funded by Australian Research Council Future Fellowship FT160100205 . We acknowledge the expert support provided by the Sydney Informatics Hub (SIH) team—a core research facility of the University of Sydney. This work was supported by computational resources provided by the Australian Government through Gadi under the National Computational Merit Allocation Scheme and was accessed through the SIH HPC Allocation Scheme [LE190100021]. Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",
year = "2022",
month = oct,
day = "15",
doi = "10.1016/j.jallcom.2022.165750",
language = "English",
volume = "918",
journal = "Journal of Alloys and Compounds",
issn = "0925-8388",
publisher = "Elsevier BV",
}