Journal ArticleDOI
Review and prospects of magnonic crystals and devices with reprogrammable band structure
TLDR
This topical review addresses materials with a periodic modulation of magnetic parameters that give rise to artificially tailored band structures and allow unprecedented control of spin waves in microand nanostructured ferromagnetic materials.Abstract:
Research efforts addressing spin waves (magnons) in micro- and nanostructured ferromagnetic materials have increased tremendously in recent years. Corresponding experimental and theoretical work in magnonics faces significant challenges in that spin-wave dispersion relations are highly anisotropic and different magnetic states might be realized via, for example, the magnetic field history. At the same time, these features offer novel opportunities for wave control in solids going beyond photonics and plasmonics. In this topical review we address materials with a periodic modulation of magnetic parameters that give rise to artificially tailored band structures and allow unprecedented control of spin waves. In particular, we discuss recent achievements and perspectives of reconfigurable magnonic devices for which band structures can be reprogrammed during operation. Such characteristics might be useful for multifunctional microwave and logic devices operating over a broad frequency regime on either the macro- or nanoscale.read more
Citations
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Journal ArticleDOI
Magnonic crystals for data processing
TL;DR: In this article, different approaches for the realization of static, reconfigurable, and dynamic magnonic crystals are presented along with a variety of novel wave phenomena discovered in these crystals.
Journal ArticleDOI
Advances in artificial spin ice
Sandra H. Skjærvø,Sandra H. Skjærvø,Christopher H. Marrows,Robert Stamps,Laura J. Heyderman,Laura J. Heyderman +5 more
TL;DR: Artificial spin ices as mentioned in this paper are metamaterials displaying fascinating phenomena arising from the collective behaviour of nanoscale magnets, such as frustration, phase transitions, and phase transitions that have previously been the domain of bulk spin crystals.
Journal ArticleDOI
Long-distance propagation of short-wavelength spin waves.
Chuanpu Liu,Chuanpu Liu,Jilei Chen,Tao Liu,Florian Heimbach,Haiming Yu,Yang Xiao,Junfeng Hu,Mengchao Liu,Houchen Chang,Tobias Stueckler,Sa Tu,Youguang Zhang,Yan Zhang,Peng Gao,Zhi-Min Liao,Dapeng Yu,Dapeng Yu,Ke Xia,Na Lei,Weisheng Zhao,Mingzhong Wu +21 more
TL;DR: The authors demonstrate the propagation of spin waves with wavelength down to 50 nm and group velocity up to 2600 m s−1 using ferromagnetic nanowires grown on a thin Y3Fe5O12 film strip structure.
Journal ArticleDOI
Collective spin excitations of helices and magnetic skyrmions: review and perspectives of magnonics in non-centrosymmetric magnets
TL;DR: In this paper, the authors address how spin helices and skyrmion lattices enrich the microwave characteristics of magnetic materials and give rise to bottom-up magnonic crystals.
Theory of the Thermal Hall Effect in Quantum Magnets
TL;DR: Ministry of Education, Culture, Sports, Science, Science and Technology of Japan (Grants in-Aid No. 17105002, No. 19048015, No 19048008, No 21244053)
References
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Inhibited Spontaneous Emission in Solid-State Physics and Electronics
TL;DR: If a three-dimensionally periodic dielectric structure has an electromagnetic band gap which overlaps the electronic band edge, then spontaneous emission can be rigorously forbidden.
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Negative Refraction Makes a Perfect Lens
TL;DR: The authors' simulations show that a version of the lens operating at the frequency of visible light can be realized in the form of a thin slab of silver, which resolves objects only a few nanometers across.
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Strong localization of photons in certain disordered dielectric superlattices
TL;DR: A new mechanism for strong Anderson localization of photons in carefully prepared disordered dielectric superlattices with an everywhere real positive dielectrics constant is described.
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Plasmonics: merging photonics and electronics at nanoscale dimensions.
TL;DR: The current status and future prospects of plAsmonics in various applications including plasmonic chips, light generation, and nanolithography are reviewed.
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Skyrmion Lattice in a Chiral Magnet
Sebastian Mühlbauer,B. Binz,F. Jonietz,Christian Pfleiderer,Achim Rosch,A. Neubauer,Robert Georgii,Peter Böni +7 more
TL;DR: This study experimentally establishes magnetic materials lacking inversion symmetry as an arena for new forms of crystalline order composed of topologically stable spin states in the chiral itinerant-electron magnet MnSi.