Two-dimensional magnetic gradients created with direct-write laser annealing
2 days ago
- #laser-annealing
- #spintronics
- #magnetism
- Engineered local variations in material properties enable groundbreaking functionalities in magnetism, microelectronics, and optics.
- Two-dimensional (2D) gradients in magnetic anisotropy, interlayer exchange coupling, and ferrimagnetic compensation are experimentally demonstrated.
- Direct-write laser annealing (DWLA) is used to create complex 2D patterns with continuous property variations at the mesoscopic scale.
- Novel magnetic functionalities include a spin wave band pass filter and a passive reset mechanism for magnetic domain walls.
- DWLA enables rapid, scalable, and high-resolution patterning without ultra-high vacuum environments or specialized equipment.
- Applications in magnonics and spintronics are highlighted, showing potential for in-memory computing and neuromorphic devices.
- Thermal simulations and experimental results confirm the effectiveness of DWLA in modifying magnetic properties across various thin-film systems.