Properties of the natural MoS2 crystal irradiated by medium- and high-energy Ni ions

Abstract

Natural MoS2 single crystals are irradiated with Ni ions with different fluences at 1 MeV and 357 MeV. The Stopping and Range of Ions in Matter software packages are used to simulate the process of Ni-ion beam peneration through the natural MoS2 single crystal. The electronic and nuclear stopping powers, displacement per atom and atoms vacancy profiles are simulated. The results show that S atoms are susceptible to the Ni-ion irradiation of natural MoS2 single crystals. Redshifts of the out-of-plane vibrations of S atoms and in-plane Mo–S phonon mode and the magnetic hysteresis loops are both recorded in the bulk and Ni-ion-irradiated natural MoS2 single crystals.

Keywords

• MoS2 single crystals
• Ion irradiation
• Raman