Realization of high-temperature metallic altermagnetism in transition metal graphite intercalation compounds

Key Points

• The central aim is to explore the emergence of altermagnetism in graphite intercalation compounds at high temperatures.
• Investigation of graphite intercalation compounds as a material system
• Analysis of magnetic properties and phases
• Characterization of the spin ordering and spin splitting phenomena
• Altermagnetism was found to coexist with compensated spin ordering
• Evidence of momentum-dependent spin splitting was observed
• This magnetic phase emerges at high temperatures, indicating potential applications in materials science.