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Materials Optimization of the Magnonic Bandgap in Two-Dimensional Bi-Component Magnonic Crystal Waveguides

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We present the results of micromagnetic study of magnonic band structures for exchange spin waves propagating in two-dimensional magnonic crystal waveguides. The studied waveguides are in the form of a regular square lattice array of square dots of a ferromagnetic material embedded in a matrix of another ferromagnetic material. Large magnonic bandgaps with widths of tens of GHz are observed. The bandgaps are also studied as a function of in-plane applied magnetic field, and the width of the square dots. The widths of the first three bandgaps are dependent on the material configurations of the waveguides, but are independent of applied field strength.
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Keywords: BANDGAP; MAGNONIC CRYSTAL; MAGNONICS; MICROMAGNETIC SIMULATIONS; SPIN WAVE

Document Type: Short Communication

Publication date: June 1, 2012

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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