Despite its potential, TMR technology faces several challenges:
Thermal Stability: Ensuring the thermal stability of TMR junctions, especially as they scale down to the nanometer regime, is critical for reliable operation. Interface Quality: The quality of the interfaces between the ferromagnetic layers and the insulating barrier must be meticulously controlled to achieve high TMR ratios. Fabrication Complexity: The fabrication process of TMR junctions involves complex deposition and patterning techniques that need to be scalable for commercial production.
