Transition temperatures of Cr2CF2 and Cr2C(OH)2

Determine the transition temperatures of the F-terminated and OH-terminated antiferromagnetic semiconducting MXenes Cr2CF2 and Cr2C(OH)2.

Background

The paper lists Cr2CCl2, Cr2CF2, and Cr2C(OH)2 as isostructural, symmetrically terminated MXene candidates with inversion-related, oppositely magnetized chromium sublayers. Although an ordering temperature is given for Cr2CCl2, the corresponding transition temperatures for the F- and OH-terminated compounds remain unavailable, leaving their magnetic operating-temperature ranges unresolved.

References

The predicted ordering temperature of $\mathrm{Cr_2CCl_2}$ is approximately $1300$~K, while transition temperatures have not been reported for the F- and OH-terminated compounds.

— Floquet Spin-Antiferroelectric Phase in Collinear Antiferromagnets  (2609.16758 - Wei et al., 15 Sep 2026) in Section IV, “Additional Two-Dimensional Antiferromagnetic Material Candidates”