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Updated: Dec 24, 2025
08:01
Spectral and Angle-Resolved Magneto-Optical Characterization of Photonic Nanostructures
Published on: November 21, 2019
7.5K
Magnonic crystals: towards terahertz frequencies
1Heisenberg Spin-dynamics Group, Physikalisches Institut, Karlsruhe Institute of Technology, Wolfgang-Gaede-Str. 1, D-76131 Karlsruhe, Germany.
Summary
This review explores designing magnonic crystals for diverse frequencies. It details mechanisms for magnonic band structures and bandgaps, enabling ultrahigh frequency operation.
Area of Science:
- Condensed matter physics
- Materials science
Background:
- Magnonic crystals offer tunable microwave and terahertz properties.
- Understanding magnonic band structure is crucial for device applications.
Purpose of the Study:
- To review experimental and theoretical designs of magnonic crystals.
- To explain mechanisms behind magnonic band formation and bandgaps.
- To discuss prospects for ultrahigh frequency operation.
Main Methods:
- Review of experimental fabrication techniques.
- Theoretical modeling of magnon dynamics.
- Analysis of band structure in various magnetic systems.
Main Results:
- Detailed explanation of magnonic band structure formation.
- Criteria for creating magnonic bandgaps identified.
- Prospects for terahertz and sub-terahertz magnonic crystals presented.
Conclusions:
- Unified picture of different magnonic crystal types provided.
- Design principles for frequency-specific magnonic crystals clarified.
- Potential for novel applications in high-frequency electronics explored.
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