Materials Research Letters (Jul 2017)

Toward edges-rich MoS2 layers via chemical liquid exfoliation triggering distinctive magnetism

  • Guanhui Gao,
  • Chi Chen,
  • Xiaobin Xie,
  • Yantao Su,
  • Shendong Kang,
  • Guichi Zhu,
  • Duyang Gao,
  • Achim Trampert,
  • Lintao Cai

DOI
https://doi.org/10.1080/21663831.2016.1256915
Journal volume & issue
Vol. 5, no. 4
pp. 267 – 275

Abstract

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The magnetic function of layered molybdenum disulfide (MoS2) has been investigated via simulation, but few reliable experimental results have been explored. Herein, we developed edges-rich structural MoS2 nanosheets via liquid phase exfoliation approach, triggering exceptional ferromagnetism. The magnetic measurements revealed the clear ferromagnetic property of layered MoS2, compared to the pristine MoS2 in bulk exhibiting diamagnetism. The existence of ferromagnetism mostly was attributed to the presence of grain boundaries with abundant irregular edges confirmed by the transmission electron microscopy, magnetic force microscopy and X-ray photoelectron spectroscopy, which experimentally provided reliable evidences on irregular edges-rich states engineering ferromagnetism to clarify theoretical calculation.

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