Tunable valley splitting and magnetic anisotropy in two-dimensional buckled honeycomb lattice Mn 2 X 2 (X = F, Cl, Br)

Key Points

• This research aims to explore spontaneous valley splitting in monolayer antiferromagnetic materials, focusing on the role of magnetic anisotropy.
• Investigated two-dimensional buckled honeycomb lattice materials with varying halogen (F, Cl, Br) compositions.
• Analyzed magnetic properties and valley splitting behavior through theoretical modeling and simulations.
• Demonstrated tunable valley splitting in Mn2X2 materials dependent on halogen substitution.
• Found significant magnetic anisotropy, enhancing the stability of valley splitting in specific compositions.