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Magnonics
Author : Sergej O. Demokritov,Andrei N. Slavin
Publisher : Springer Science & Business Media
Release Date : 2012-08-15
ISBN 10 : 3642302475
Pages : 262 pages
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Spin waves (and their quanta magnons) can effectively carry and process information in magnetic nanostructures. By analogy to photonics, this research field is labelled magnonics. It comprises the study of excitation, detection, and manipulation of magnons. From the practical point of view, the most attractive feature of magnonic devices is the controllability of their functioning by an external magnetic field. This book has been designed for students and researchers working in magnetism. Here the readers will find review articles written by leading experts working on realization of magnonic devices.

Fundamentals of Magnonics
Author : Sergio M. Rezende
Publisher : Springer Nature
Release Date : 2020
ISBN 10 : 3030413179
Pages : 372 pages
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Fundamentals of Magnonics is a textbook for beginning graduate students in the areas of magnetism and spintronics. The level of presentation assumes only basic knowledge of the origin of magnetism and electromagnetism, and quantum mechanics. The book utilizes elementary mathematical derivations, aimed mainly at explaining the physical concepts involved in the phenomena studied and enabling a deeper understanding of the experiments presented. Key topics include the basic phenomena of ferromagnetic resonance in bulk materials and thin films, semi-classical theory of spin waves, quantum theory of spin waves and magnons, magnons in antiferromagnets, parametric excitation of magnons, nonlinear and chaotic phenomena, Bose-Einstein condensation of magnons, and magnon spintronics. Featuring end-of-chapter problem sets accompanied by extensive contemporary and historical references, this book provides the essential tools for any graduate or advanced undergraduate-level course of studies on the emerging field of magnonics.

Magnonics
Author : Abdellatif Akjouj,Leonard Dobrzyński,Housni Al-Wahsh,El Houssaine El Boudouti,Gaetan Leveque,Yan Pennec,Bahram Djafari-Rouhani
Publisher : Elsevier
Release Date : 2019-01-09
ISBN 10 : 0128133678
Pages : 270 pages
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Magnonics: Interface Transmission Tutorial Book Series provides up-to-date and concise summaries of the present knowledge of interface transmission science. The series' volumes foster the exchange of ideas among scientists interested in different aspects of interface transmission, with each release designed as a text, a reference, and a source. The series serves as an introduction to advanced graduate students, researchers and scientists with little acquaintance with the subject, and is also useful in keeping specialists informed about general progress in the field. A detailed description of mathematical languages is provided in an appendix, enabling readers to find composite system linear transmission properties. All scientists who contribute to these volume have worked in interface transmission in composite systems over many years, providing a thorough and comprehensive understanding of magnonics. Offers a unique approach to magnonics from an interfacial transmission point-of-view Teaches the modern physics of interface transmission, and in particular, magnonics through composite systems Authored and edited by world-leading experts on Interface Transmission

Three-Dimensional Magnonics
Author : Gianluca Gubbiotti
Publisher : CRC Press
Release Date : 2019-07-16
ISBN 10 : 1000024547
Pages : 396 pages
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Magnonics, a research field that uses spin waves, collective excitations of ordered magnetic materials, or magnons (their quanta) as a tool for signal processing, communication, and computation, has rapidly grown during the past decade because of the low-energy consumption and potential compatibility with next-generation circuits beyond CMOS electronics. The interest in 3D magnonic nanostructures follows the latest trend in conventional electronics based on expansion from 2D planar to 3D vertically integrated structures. To remain on the same technological level, a similar expansion should be realized in magnonics. Following this trend, this book provides an overview of recent developments in the exploitation of the third dimension in magnonics, with special focus on the propagation of spin waves in layered magnonic crystals, spin textures, curved surfaces, 3D nano-objects, and cavity magnonics.

Controlling Anisotropy in Organic-based Magnets for Coherent Magnonics
Author : Michael A. Chilcote
Publisher : N.A
Release Date : 2020
ISBN 10 :
Pages : 329 pages
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The study of coherent magnonic interactions relies implicitly on the ability to excite and exploit long lived spin wave excitations in a magnetic material. That requirement has led to the nearly universal reliance on yittrium iron garnet (YIG), which for half a century has reigned as the unchallenged leader in low-loss magnetic resonance despite extensive efforts to identify alternative materials. Surprisingly, the organic-based ferrimagnet vanadium tetracyanoethylene (V[TCNE]x; x ~ 2) has recently emerged as a compelling alternative to YIG. In contrast to other organic-based materials, V[TCNE]x exhibits robust magnetism, has a single-peaked, narrow magnetic resonance feature (less than 1 G at 10 GHz), and has a Curie temperature of over 600 K with sharp hysteresis switching to full saturation at room temperature. On the other hand, progress in the field of organic electronics has yielded significant advances in the development and application of organic light emitting diodes (OLEDs), organic photovoltaics (OPVs), and organic field effect transistors (OFETs). The success of these device applications suggests that further expansion of the field to include magnetic functionality offers promising opportunities. At the same time, the emergence of optimized thin-film growth of and successful encapsulation strategies for organic-based magnetic materials allows for long term stability of high-quality magnets under ambient conditions. Presented here is the synthesis of a new class of organic-based magnetic nanostructures consisting of nanowires of V[TCNE]x that assemble along the ridges of a grooved substrate. These nanowires exhibit uniaxial magnetic anisotropy with an in-plane easy axis perpendicular to the nanowires, which is in direct contrast to the isotropic in-plane response of typical thin-films. These nanostructures support the excitation of multiple modes, and when these different magnon modes are brought into resonance by varying the orientation of an in-plane magnetic field, we observe anticrossing behavior, indicating strong coherent coupling between the excitations. Furthermore, micromagnetic simulations using real nanowire profiles extracted from cross-sectional scanning electron microscopy faithfully reproduce the experimentally measured spectra without any free parameters, including spin-wave and other higher-order modes Additionally, we use this data to explore the origin of the induced anisotropy in this materials system and note that these results offer insight into a whole class of organic-based magnetic materials of the form M[Acceptor]x (M = transition metal; x ~ 2). We study films of the V[TCNE]x analog vanadium methyl tricyanoethylenecarboxylate (V[MeTCEC]x), which show a temperature-dependent switch in the easy axis from in-plane to out of plane, supporting conclusions drawn from studies of the induced anisotropy in V[TCNE]x nanostructures. These results introduce a new degree of freedom for organic-based magnetism and spintronics, and together with recent demonstration of encapsulation technologies and demonstrated functional microwave devices that exhibit high quality factors across a range of frequencies, suggest promising applications in microwave electronics and quantum magnonics.

Adding nonlinearity to an electromagnetic-magnonic quantum hybrid device
Author : Pfirrmann, Marco
Publisher : KIT Scientific Publishing
Release Date : 2020-10-05
ISBN 10 : 3731510030
Pages : 138 pages
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In this book, hybrid systems based on yttrium-iron-garnet (YIG), three dimensional microwave cavity resonators, and superconducting transmon qubits, are investigated by continuous wave and pulsed microwave spectroscopy. Limitations to the magnetic linewidth in the quantum regime are identified and coherent exchange between a magnon and a superconducting qubit are demonstrated. Finally, a first step towards a strongly coupled hybrid system containing all three components is demonstrated.

Microwave Magnonics at Millikelvin Temperatures
Author : Sandoko Kosen
Publisher : N.A
Release Date : 2019
ISBN 10 :
Pages : 329 pages
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The Building Blocks of Magnonics
Author : N.A
Publisher : N.A
Release Date : 2011
ISBN 10 :
Pages : 30 pages
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Spin Wave Confinement
Author : Sergej O. Demokritov
Publisher : CRC Press
Release Date : 2017-09-07
ISBN 10 : 1351617214
Pages : 436 pages
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Since the publication of the first edition of Spin-Wave Confinement, the magnetic community’s interest in dynamic excitations in magnetic systems of reduced dimensions has been increasing. Although the concept of spin waves and their quanta (magnons) as propagating excitation of magnetic media was introduced more than 80 years ago, this field has been repeatedly bringing us fascinating new physical phenomena. The successful development of magnonics as an emerging subfield of spintronics, which considers confined spin waves as a basis for smaller, faster, more robust, and more power-efficient electronic devices, inevitably demands reduction in the sizes and dimensions of the magnetic systems being studied. The unique features of magnons, including the possibility of carrying spin information over relatively long distances, the possibility of achieving submicrometer wavelength at microwave frequencies, and controllability by electronic signal via magnetic fields, make magnonic devices distinctively suited for implementation of novel integrated electronic schemes characterized by high speed, low power consumption, and extended functionalities. Edited by S. O. Demokritov, a prominent magnonics researcher who has successfully collected the results of cutting-edge research by almost all main players in the field, this book is for everyone involved in nanotechnology, spintronics, magnonics, and nanomagnetism.

Ultrafast Magnetism I
Author : Jean-Yves Bigot,Wolfgang Hübner,Theo Rasing,Roy Chantrell
Publisher : Springer
Release Date : 2014-08-05
ISBN 10 : 3319077430
Pages : 341 pages
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This volume on Ultrafast Magnetism is a collection of articles presented at the international “Ultrafast Magnetization Conference” held at the Congress Center in Strasbourg, France, from October 28th to November 1st, 2013. This first conference, which is intended to be held every two years, received a wonderful attendance and gathered scientists from 27 countries in the field of Femtomagnetism, encompassing many theoretical and experimental research subjects related to the spins dynamics in bulk or nanostructured materials. The participants appreciated this unique opportunity for discussing new ideas and debating on various physical interpretations of the reported phenomena. The format of a single session with many oral contributions as well as extensive time for poster presentations allowed researchers to have a detailed overview of the field. Importantly, one could sense that, in addition to studying fundamental magnetic phenomena, ultrafast magnetism has entered in a phase where applied physics and engineering are playing an important role. Several devices are being proposed with exciting R&D perspectives in the near future, in particular for magnetic recording, time resolved magnetic imaging and spin polarized transport, therefore establishing connections between various aspects of modern magnetism. Simultaneously, the diversity of techniques and experimental configurations has flourished during the past years, employing in particular Xrays, visible, infra-red and terahertz radiations. It was also obvious that an important effort is being made for tracking the dynamics of spins and magnetic domains at the nanometer scale, opening the pathway to exciting future developments. The concerted efforts between theoretical and experimental approaches for explaining the dynamical behaviors of angular momentum and energy levels, on different classes of magnetic materials, are worth pointing out. Finally it was unanimously recognized that the quality of the scientific oral and poster presentations contributed to bring the conference to a very high international standard.

Research EU.
Author : N.A
Publisher : N.A
Release Date : 2013-11
ISBN 10 :
Pages : 329 pages
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Electric Field Induced Spin Wave Generation for Beyond CMOS Magnonic Logic Devices
Author : Jayshankar Nath
Publisher : N.A
Release Date : 2012
ISBN 10 :
Pages : 58 pages
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The semiconductor industry is fast approaching the fundamental scaling limit of conventional complementary metal-oxide-semiconductor (CMOS) devices. This has spurred numerous exploratory researches in the last decade, on technologies that can sustain Moore's law and eventually replace CMOS based devices. One such magnonics based, beyond CMOS device is called the spin wave device. A spin wave device is a low power magnetic logic device that uses a propagating wave of precessional spins, called a spin wave, to perform computations. Traditionally, spin waves have been generated using energetically inefficient, inductively coupled antennas. In order to attain atto-joule energy per operation, which is substantially lower than that of the current generation of CMOS devices, we propose and demonstrate a novel method of spin wave generation using the strain mediated magneto electric effect. We have conducted extensive experimental and numerical studies to design, engineer and fabricate such nano scale spin wave devices. These devices could in effect outperform and eventually replace the CMOS based logic devices.