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Magnetism in MoS 2 induced by proton irradiation
Mathew S., Gopinadhan K., Chan T.K., Yu X.J., Zhan D., Cao L., Rusydi A., Breese M.B.H., , Shen Z.X.Show More
Published in
Volume: 101
Issue: 10
Molybdenum disulphide, a diamagnetic layered dichalcogenide solid, is found to show magnetic ordering at room temperature when exposed to a 2 MeV proton beam. The temperature dependence of magnetization displays ferrimagnetic behavior with a Curie temperature of 895 K. A disorder mode corresponding to a zone-edge phonon and a Mo valence higher than +4 has been detected in the irradiated samples using Raman and x-ray photoelectron spectroscopy, respectively. The possible origins of long-range magnetic ordering in irradiated MoS 2 samples are discussed. © 2012 American Institute of Physics.
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