Dynamic origin of segment magnetization reversal in thin-film Penrose tilings
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- 作者：F. Montoncelloa ; montoncello@fe.infn.it" class="auth_mail" title="E-mail the corresponding author ; L. Giovanninia ; B. Farmerb ; L. De Longb
- 关键词：Spin waves ; Magnonic crystals ; Artificial quasi-crystals ; Soft modes ; Frustrated systems
- 刊名：Journal of Magnetism and Magnetic Materials
- 出版年：2017
- 出版时间：1 February 2017
- 年：2017
- 卷：423
- 期：Complete
- 页码：158-163
- 全文大小：711 K
文摘
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A soft mode origin for each macrospin reversal is proposed for a Penrose P2 tiling.
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Soft mode profile triggers domain wall formation and instability in each macrospin.
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This theory upgrades a former static picture of a domain wall charge dissociation.
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The complete magnetization loop occurs by cascade of unpredictable local reversals.
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The correct reproduction of macrospin reversal order depends on the applied field.