Despite their advantages, MTJs face several challenges that need to be addressed:
Thermal Stability: Maintaining the stability of the magnetic states at elevated temperatures is a key concern. Manufacturing Consistency: Ensuring uniformity in the thin insulating barrier is crucial for reliable performance. Material Selection: The choice of materials for the ferromagnetic layers and the insulating barrier affects the TMR ratio and overall device performance. Integration: Integrating MTJs with existing semiconductor technology requires overcoming compatibility issues.