Journal
AIP ADVANCES
Volume 10, Issue 1, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5127989
Keywords
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Funding
- National Natural Science Foundation of China [51771053, 51971109, 51471085]
- National Key Research and Development Program of China [2016YFA0300803]
- Fundamental Research Funds for the Central Universities
- Key Laboratory of MEMS of Ministry of Education, Southeast University
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The introduction of ferromagnetism in MoS2 is important for its applications in semiconductor spintronics. MoS2 powders were synthesized by hydrothermal method, followed by the N plasma treatment at room temperature. Weak ferromagnetism with saturated ferromagnetic magnetization of 0.64 memu/g has been observed in the as-synthesized MoS2 at room temperature, which is significant enhanced to 3.67 memu/g after the N plasma treatment for the proper duration. X-ray photoelectron spectroscopy demonstrates the adsorption of N, and higher valence state of Mo than +4 due to the bonding with N after the N plasma treatment. First principle calculation has been performed to disclose the possible origin of ferromagnetism. One chemical adsorbed N ion on S ion may form conjugated p bonds with adjacent two Mo ions to have a total magnetic moment of 0.75 mu B, contributing to the enhanced ferromagnetism. (C) 2020 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.
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