The band structures with GGA-PBE, Meta-GGA-TB09, and HSE06 functionals, crystal structures, phonon spectra of Sc2CHO and Sc2CHF monolayers, spin-resolved PLDOS of Dev-4F, Dev-6F, Dev-10F, Dev-12F, Dev-16F, and Dev-18F, and performance characteristics of spin-FETs at room temperature.