ダブル・マグノニック結晶を用いたバックワードスピン波遮断

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タイトル別名
  • Strong Absorption Effect for Propagating Backward Spin-Waves by Double Magnonic Crystal
  • ダブル ・ マグノニック ケッショウ オ モチイタ バックワードスピンハ シャダン

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<p>  In this paper, propagating backward spin-waves were modulated by a double-meander magnonic crystal which generate a localized Oersted field and affects spin-wave propagation characteristics. Compared with the conventional single-meander magnonic crystal, a pair of meanders can generate a wider frequency rejection band. By sweeping a bias magnetic field, the spin wave resonance frequency and group velocity were changed. When the spin wave resonance was matched to the rejection band of a double magnonic crystal, the amplitude of backward spin-waves were attenuated up to 95%. The strong absorption effect could be a basic principle of spin-wave switching in a future magnonic circuit.</p>

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