Magnetism in MoS2 induced by proton irradiation

By S. Mathew, K. Gopinadhan, T. Chan, X. Yu, D. Zhan, L. Cao, A. Rusydi, M. Breese, S. Dhar, Z. Shen and 2 more. 2012

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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.

Subfields: Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/6b72931122dd07cd26a0a14a128506474b0423a3