共 25 条
Magnonic band gap design by the edge modulation of micro-sized waveguides
被引:40
作者:
Ciubotaru, F.
[1
]
Chumak, A. V.
[1
]
Grigoryeva, N. Yu
[2
]
Serga, A. A.
[1
]
Hillebrands, B.
[1
]
机构:
[1] Tech Univ Kaiserslautern, Fac Phys & Forschungszentrum OPTIMAS, D-67663 Kaiserslautern, Germany
[2] St Petersburg Elect Univ, Dept Phys Elect & Technol, St Petersburg 197376, Russia
关键词:
Microwave filters - Waveguide filters - Degrees of freedom (mechanics) - Spin waves;
D O I:
10.1088/0022-3727/45/25/255002
中图分类号:
O59 [应用物理学];
学科分类号:
摘要:
The potential to control the number of the spin-wave band gaps of a magnonic crystal (MC) by variation of its geometry is investigated by numerical simulations. The MC is represented by a micro-sized planar ferromagnetic waveguide with periodically variable width. By choosing a step-like or sinusoidal variation of the width, the MC reveals multiple or single band gaps, respectively. This allows for additional degrees of freedom in the design of MC-based microwave filters and phase shifters with desired characteristics. The MCs' band gaps have been studied in the space and frequency domains exploring the spin-wave spectrum dependence on the probing position inside the MC.
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页数:6
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