Theoretical analysis of microwave magnonic crystals of finite length

[摘要] Propagation of spin waves in a one-dimensional magnonic crystal to a finite distance have been studied theoretically. It was shown that, in contrast to the ideal spatially unlimited magnonic crystals with zero loss, there are no band gaps in the real magnonic crystals. The effective spectrum of spin waves at frequencies close to the Bragg resonances strongly depends on the magnonic crystal length.

[发布机构] St. Petersburg Electrotechnical University, St. Petersburg; 197376, Russia^1;ITMO University, St. Petersburg; 197101, Russia^2

[效力级别] 天文学 [学科分类] 天文学(综合)

[关键词] Bragg resonance;Finite distance;Finite length;Magnonic crystals