Journal ArticleDOI
Magnonics: Spin Waves on the Nanoscale
S. Neusser,Dirk Grundler +1 more
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TLDR
Magnonic crystals are expected to provide full control of spin waves, similarly to what photonic crystals already do for light as mentioned in this paper, and combined with nonvolatility, multifunctional metamaterials might be formed.Abstract:
Magnetic nanostructures have long been in the focus of intense research in the magnetic storage industry. For data storage the nonvolatility of magnetic states is of utmost relevance. As information technology generates the need for higher and higher data-transfer rates, research efforts have moved to understand magnetization dynamics. Here, spin waves and their particle-like analog, magnons, are increasingly attracting interest. High-quality nanopatterned magnetic media now offer new ways to transmit and process information without moving electrical charges. This new functionality is enabled by spin waves. They are confined by novel functioning principles, which render them especially suitable to operate at the nanoscale. Magnonic crystals are expected to provide full control of spin waves, similarly to what photonic crystals already do for light. Combined with nonvolatility, multifunctional metamaterials might be formed. We report recent advances in this rapidly increasing research field called magnonics.read more
Citations
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Journal ArticleDOI
Magnon transistor for all-magnon data processing
TL;DR: It is demonstrated that the density of magnons flowing from the transistor’s source to its drain can be decreased three orders of magnitude by the injection of Magnon–magnon interactions into the transistor's gate.
Journal ArticleDOI
The building blocks of magnonics
TL;DR: In this paper, a review of the functionalities of spinwave devices, concepts for spin-wave based computing and magnonic crystals is presented. But the focus of this review is on the control over the interplay between localization and delocalization of the spinwave modes using femtosecond lasers.
Journal ArticleDOI
The building blocks of magnonics
TL;DR: In this paper, a review of spin-wave properties and properties is presented, where the crucial parameters to realize free Bloch states and how, by contrast, a controlled localization might allow us to gradually turn on and manipulate spinwave interactions in spinwave based devices in the future.
Journal ArticleDOI
Review and prospects of magnonic crystals and devices with reprogrammable band structure
TL;DR: 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.
Journal ArticleDOI
Realization of a spin-wave multiplexer
K. Vogt,Frank Y. Fradin,John E. Pearson,T. Sebastian,T. Sebastian,S. D. Bader,Burkard Hillebrands,Axel Hoffmann,Helmut Schultheiss,Helmut Schultheiss +9 more
TL;DR: This work presents the experimental realization of a microstructured spin-wave multiplexer as a fundamental building block of a magnon-based logic and illustrates unique features of magnonic transport as well as their possible utilization for potential technical applications.
References
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TL;DR: It is shown that in finite, nonellipsoidal, micrometer size magnetic thin film elements the dynamic magnetic eigenexcitations (spin waves) may exhibit strong spatial localization.
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Elena V. Shevchenko,Elena V. Shevchenko,Maryna I. Bodnarchuk,Maksym V. Kovalenko,Dmitri V. Talapin,Dmitri V. Talapin,Rachel K. Smith,Shaul Aloni,Wolfgang Heiss,A. Paul Alivisatos +9 more
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Direct Observation of Magnetic Relaxation in a Small Permalloy Disk by Time-Resolved Scanning Kerr Microscopy
Journal ArticleDOI
Spin waves in periodic magnetic structures-magnonic crystals
TL;DR: In this paper, the propagation of spin waves through a periodic multilayered magnetic structure is analyzed, where it is assumed that the structure consists of ferromagnetic layers having the same thickness but different magnetizations.