A research team led by Rita Du at UC San Diego has used Qnami Foundry diamonds to perform quantum sensing and imaging of the van der Waals (vdW) magnet CrPS₄, uncovering its layer-dependent static magnetism and dynamic spin fluctuations at the atomic scale.

vdW magnets, a rapidly growing class of 2D materials, offer exceptional tunability of their magnetic and electronic properties, making them highly promising for next-generation microelectronic and spintronic devices. This study further demonstrates large tunneling magnetoresistance in CrPS₄-based spin-filter heterostructures, highlighting its potential for state-of-the-art 2D spintronics. With high material stability and resistance to environmental degradation, CrPS₄ represents an exciting platform for advancing quantum technologies and information processing.