Magnetism in MoS2 induced by proton irradiation

Magnetism in MoS2 induced by proton irradiation

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...

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Bibliographic Details
Main Authors: Shen, Zexiang, Mathew, S., Gopinadhan, K., Chan, T. K., Yu, X. J., Zhan, D., Cao, L., Rusydi, A., Breese, M. B. H., Dhar, S., Venkatesan, T., Thong, John T. L.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2013
Online Access:https://hdl.handle.net/10356/95113
http://hdl.handle.net/10220/9211
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Institution: Nanyang Technological University
Language: English
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Summary: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 MoS2 samples are discussed.

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