Magnetic doping in transition metal dichalcogenides

Area of Science:

• Materials Science
• Condensed Matter Physics
• Nanotechnology

Background:

• Two-dimensional transition metal dichalcogenides (TMDCs) possess unique electronic properties.
• There is significant interest in developing ferromagnetic TMDCs for spintronics and electronic devices.
• Non-magnetic TMDCs can be modified to exhibit ferromagnetism via defects or doping.

Purpose of the Study:

• To review experimental advancements in inducing ferromagnetism in non-magnetic TMDCs.
• To discuss methods like intrinsic defects, self-flux doping, ion implantation, and e-beam evaporation.
• To highlight the role of density functional theory in predicting new ferromagnetic TMDCs.

Main Methods:

• Review of experimental studies on modified non-magnetic TMDCs.
• Categorization of experimental work by modification/doping mechanisms.
• Inclusion of density functional theory (DFT) calculations for predicting ferromagnetism.

Main Results:

• Ferromagnetism can be induced in intrinsically non-magnetic TMDCs through intrinsic defects or various doping techniques.
• Experimental findings are organized based on the specific modification or doping approach used.
• DFT calculations provide predictive data for identifying promising new doped TMDCs.

Conclusions:

• Controlled induction of magnetism in 2D materials is crucial for technological progress.
• This review identifies promising TMDC materials and fundamental procedures for achieving controlled magnetism.
• Further experimental investigation is needed for developing new doped TMDCs for technological applications.