» Articles » PMID: 38392707

Strong Room-Temperature Ferromagnetism of MoS Compound Produced by Defect Generation

Overview
Date 2024 Feb 23
PMID 38392707
Authors
Affiliations
Soon will be listed here.
Abstract

Ferromagnetic materials have been attracting great interest in the last two decades due to their application in spintronics devices. One of the hot research areas in magnetism is currently the two-dimensional materials, transition metal dichalcogenides (TMDCs), which have unique physical properties. The origins and mechanisms of transition metal dichalcogenides (TMDCs), especially the correlation between magnetism and defects, have been studied recently. We investigate the changes in magnetic properties with a variation in annealing temperature for the nanoscale compound MoS. The pristine MoS exhibits diamagnetic properties from low-to-room temperature. However, MoS compounds annealed at different temperatures showed that the controllable magnetism and the strongest ferromagnetic results were obtained for the 700 °C-annealed sample. These magnetizations are attributed to the unpaired electrons of vacancy defects that are induced by annealing, which are confirmed using Raman spectroscopy and electron paramagnetic resonance spectroscopy (EPR).

References
1.
PRINZ . Magnetoelectronics . Science. 1998; 282(5394):1660-3. DOI: 10.1126/science.282.5394.1660. View

2.
Ganatra R, Zhang Q . Few-layer MoS2: a promising layered semiconductor. ACS Nano. 2014; 8(5):4074-99. DOI: 10.1021/nn405938z. View

3.
Wang Y, Wang J, Ding C, Zhang H, Du R, Zhang S . Laser-induced phenylation reaction to prepare semiconducting single-walled carbon nanotube arrays. Chem Commun (Camb). 2020; 56(91):14259-14262. DOI: 10.1039/d0cc06095j. View

4.
Li Y, Zhou Z, Zhang S, Chen Z . MoS2 nanoribbons: high stability and unusual electronic and magnetic properties. J Am Chem Soc. 2009; 130(49):16739-44. DOI: 10.1021/ja805545x. View

5.
Shidpour R, Manteghian M . A density functional study of strong local magnetism creation on MoS2 nanoribbon by sulfur vacancy. Nanoscale. 2010; 2(8):1429-35. DOI: 10.1039/b9nr00368a. View