Spin polarized nodal loop state at Fermi level in the monolayer PrClS

Area of Science:

• Condensed Matter Physics
• Materials Science
• Quantum Electronics

Background:

• Two-dimensional (2D) materials are crucial for next-generation electronics.
• Half-metallicity and topological properties are highly sought after for spintronic and quantum applications.
• Investigating novel 2D materials is key to technological advancement.

Purpose of the Study:

• To comprehensively study the electronic and mechanical properties of a 2D PrClS monolayer.
• To identify and characterize novel topological states within the material.
• To assess the material's potential for spintronic and quantum device applications.

Main Methods:

• Density Functional Theory (DFT) calculations.
• Analysis of electronic band structure and spin polarization.
• Topological characterization using maximally localized Wannier functions.
• Investigation of mechanical properties and anisotropy.

Main Results:

• The PrClS monolayer exhibits ferromagnetic half-metallicity with 100% spin polarization in the spin-up channel.
• A spin-polarized nodal loop state, aligned with the Fermi level, was discovered.
• Distinct topological edge states were identified, separated from bulk bands.
• Mechanical anisotropy was revealed, indicating directional dependence.

Conclusions:

• The PrClS monolayer is a promising platform for exploring spin-polarized topological phenomena.
• The discovered nodal loop state and edge states offer significant potential for spintronics and quantum computing.
• The material's unique electronic and mechanical properties make it suitable for advanced technological applications.