Two-dimensional gradients in magnetic properties created with direct-write laser annealing
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Date
2025-12-09
Publication Type
Journal Article
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yes
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Abstract
Across the fields of magnetism, microelectronics, optics, and others, engineered local variations in material properties can yield groundbreaking functionalities that play a crucial role in enabling future technologies. One-dimensional lateral gradients in material properties give rise to a plethora of new effects in thin-film magnetic systems. However, extending such gradient-induced behaviors to two dimensions has been challenging to realize experimentally. Here, we demonstrate the creation of two-dimensional complex patterns with continuous variations in magnetic anisotropy, interlayer exchange coupling, and ferrimagnetic compensation at the mesoscopic scale in numerous application-relevant magnetic materials. We exploit our engineered gradients in material properties to demonstrate novel magnetic functionalities, including the creation of a spin wave band pass filter and an architecture for passively resetting the position of a magnetic domain wall. Our results highlight the exciting new physics and device applications enabled by two-dimensional gradients in thin film properties.
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published
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Volume
16 (1)
Pages / Article No.
10979
Publisher
Nature
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Software
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Date created
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Organisational unit
03997 - Heyderman, Laura / Heyderman, Laura
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Funding
22-2 FEL-006 - Chiral magnon waveguides for spin wave devices (ETHZ)