Journal
APPLIED PHYSICS LETTERS
Volume 116, Issue 1, Pages -Publisher
AIP Publishing
DOI: 10.1063/1.5129204
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Funding
- National Key RD Plan [2017YFB0405702]
- National Natural Science Foundation of China [11774279, 11834018]
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Ferromagnetism of two-dimensional (2D) materials mediated by strain engineering has been extensively studied in theoretical calculations. However, due to the difficulty of introducing strain into 2D materials, experimental research has always been a challenge. We have fabricated MoS2 thin films using polymer assisted deposition and have observed strain-induced ferromagnetism in buckled MoS2 films. After buckling, the saturated magnetization (M-s) of buckled films at 300K (0.486emu.g(-1)) is enhanced 7.5 times compared to that of flat films (0.065emu.g(-1)), while the linear temperature coefficient (chi(T)) of buckled MoS2 films for E-2g(1) mode of Raman spectra is reduced to one third. Our results suggest that biaxial tensile strain plays a significant role in modulating magnetism, which may provide a feasible way for the fabrication and study of strain-related spintronic devices.
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