Magnons in a Quasicrystal: Propagation, Extinction, and Localization of Spin Waves in Fibonacci Structures
Magnons in a Quasicrystal: Propagation, Extinction, and Localization of Spin Waves in Fibonacci Structures
Magnonic crystals (magnetic metamaterials for manipulating spin waves) are important building blocks for rf filters and logic. However, regular crystals pose significant constraints for complex designs. This study combines time-resolved x-ray microscopy and numerical modeling to show that quasiperiodic Fibonacci crystals provide advanced control of the magnonic band structure. Furthermore, …