Microscopic NMR evidence for successive antiferroelectric and antiferromagnetic order in the van der Waals magnet CuCrPS
This study utilizes comprehensive P and Cu nuclear magnetic resonance (NMR) measurements to provide direct microscopic evidence of successive quasi-antiferroelectric, antiferroelectric, and antiferromagnetic phase transitions in the van der Waals magnet CuCrPS, while characterizing its magnetic exchange interactions and identifying its critical behavior within the three-dimensional Heisenberg universality class.