Magnonic Devices
DOWNLOAD
Download Magnonic Devices PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Magnonic Devices book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Magnonic Devices
DOWNLOAD
Author : C. S. Nikhil Kumar
language : en
Publisher: Springer Nature
Release Date : 2023-01-24
Magnonic Devices written by C. S. Nikhil Kumar and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-01-24 with Science categories.
This book briefly looks at numerical modeling and micromagnetic simulation results of magnonic crystals, which are periodically modulated magnonic devices regarded as the magnetic counterpart of photonic crystals with spin waves acting as the information carrier. Since the wavelength of the spin wave is several orders of magnitude shorter than that of electromagnetic waves of the same frequency, magnonic crystals are promising candidates for miniaturization, especially in the fields of data storage and processing. The book begins by describing the dispersion relation of dipolar spin waves in a magnonic curved waveguide, solving Walker's equation in cylindrical coordinates, and then calculating the dispersion of exchange spin waves using perturbation theory. It describes simulated nano-contact-driven spin wave excitations in a magnonic cavity, featuring a design of an antidot magnonic crystal around the nano-contact, with the frequency of the spin wave mode generated lying within the band gap of the magnonic crystal. The proposed device behaves as a SWASER—Spin Wave Amplification by the Stimulated Emission of Radiation. This book will find interest among researchers and practitioners interested in the modeling, simulation, and design of novel magnonic devices.
Magnonics
DOWNLOAD
Author : Sergej O. Demokritov
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-08-15
Magnonics written by Sergej O. Demokritov and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08-15 with Technology & Engineering categories.
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.
Design Of Cavity Magnonic Devices Based On The Dynamics Of Cavity Magnon Polaritons
DOWNLOAD
Author : Jinwei Rao
language : en
Publisher:
Release Date : 2021
Design Of Cavity Magnonic Devices Based On The Dynamics Of Cavity Magnon Polaritons written by Jinwei Rao and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
As a new platform for studying light-matter interactions, cavity magnonics has attracted increasing attention in the past decade, because of its promising applications in quantum information processing and spintronics. In such hybrid systems, the strong interaction between cavity photons and ferromagnetic magnons generates cavity magnon polaritons (CMPs), which acquire complementary properties with both the high movability of the microwave photon and the long coherence time of the ferromagnetic spin. On one hand, high movability enables CMP as an excellent information carrier and offers cavity magnonic systems vast ductility. Components with distinct properties can be integrated into the cavity magnonic device to extend its functionality. On the other hand, by taking advantage of the long coherence time, CMP can be a promising candidate to preserve entanglement states in quantum information processing. Based on this versatile platform, technologies have flourished, including gradient memory architecture, single magnon detection, non-local spin current manipulation, and unidirectional invisibility etc. In this thesis, we explore cavity magnonics by designing new cavity magnonic devices based on the dynamics of CMPs. In Chapter 3, we fabricate two cavity magnonic devices with multi-channels. By utilizing the interference between two degenerate channels, a logic gate based on the analogue dynamic Hall effect of CMPs is designed. Additionally, by utilizing the interference between two non-degenerate channels mediated by a magnon mode, a coherent perfect absorber is achieved. In Chapter 4, we introduce the gain mechanism into cavity magnonics and discover the cooperative dynamics of CMPs in a feedback-coupled cavity. Following this work, the electric control of the cooperative dynamics of CMPs is demonstrated. In Chapter 5, we study the photon-magnon interaction in an open system and discover the dissipative photon-magnon coupling effect. To further understand this effect, we study the indirect interactions between a cavity photon mode and a separated magnon mode, and attribute the physical origin of the dissipative coupling effect to traveling waves. Our works extend the research of cavity magnonics to three different directions: multi-channel, active and open boundary. The devices and techniques developed in this thesis may pave ways for future study of cavity magnonics.
Micromagnetic Simulations Of High Speed Magnonic Devices
DOWNLOAD
Author : K. Fripp
language : en
Publisher:
Release Date : 2022
Micromagnetic Simulations Of High Speed Magnonic Devices written by K. Fripp and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022 with categories.
Magnetic Resonators
DOWNLOAD
Author : C. S. Nikhil Kumar
language : en
Publisher: Springer Nature
Release Date : 2022-10-06
Magnetic Resonators written by C. S. Nikhil Kumar and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-06 with Science categories.
The phase-locking of multiple spin-torque nano oscillators(STNOs) is considered the primary vehicle to achieve sufficient signal quality for applications. This book highlights the resonator's design and its need for feedback for phase locking of STNOs. STNOs can act as sources of tunable microwaves after being phase-locked together. External feedback from a coplanar waveguide placed above an STNO helps ensures coherent single domain oscillations. STNOs placed within magnonic crystal cavities also demonstrate coherent oscillations. Arrays of such cavities provide a route to scale power levels from such nano-oscillators. The book presents numerical and micromagnetics to validate the design.
Magnonic Holographic Devices
DOWNLOAD
Author : Frederick Gertz
language : en
Publisher:
Release Date : 2015
Magnonic Holographic Devices written by Frederick Gertz and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with Magnetic memory (Computers) categories.
For the past 50 years technological advancement has been dominated by semiconducting technologies. Transistors have gone from macro scale to micron scaled devices to nanoscale, and CMOS technology has continuously improved to keep up with the aggressive shrinking of these logic and memory devices. However, with the release of CMOS features of 22nm and CMOS manufacturers already researching 5nm die features for devices, it is just a matter of time before CMOS and transistor technology reaches the end of what it can be scaled down to. Also with each scaling power consumption by the device as well as power dissipation from the device, especially due to waste heat becomes an increasing concern[1]. With this in mind, many new technologies have been proposed to either redesign current transistor technology to extend its future or to completely replace it with alternative technologies all together. Contained here-in is a proposed device with the possibility to replace or enhance current transistor design and CMOS processing using Spin Wave systems. The devices comprise a magnetic matrix and spin wave generating/detecting elements placed on the edges of the waveguides. The matrix consists of a grid of magnetic waveguides connected via cross junctions. Magnetic memory elements are incorporated within the junction while the read-in and read-out is accomplished by the spin waves propagating through the waveguides. Presented in this work is experimental data on spin wave propagation through NiFe and YIG magnetic crosses. The obtained experimental data show prominent spin wave signal by the external magnetic field, where both the strength and the direction of the magnetic field define the transport between the cross arms. Also presented is experimental data on the 2-bit magnonic holographic memory built on the double cross YIG structure with micro-magnets placed on the top of each cross. It appears possible to recognize the state of each magnet via the interference pattern produced by the spin waves.
Electric Field Induced Spin Wave Generation For Beyond Cmos Magnonic Logic Devices
DOWNLOAD
Author : Jayshankar Nath
language : en
Publisher:
Release Date : 2012
Electric Field Induced Spin Wave Generation For Beyond Cmos Magnonic Logic Devices written by Jayshankar Nath and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012 with categories.
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.
Spin Wave Confinement
DOWNLOAD
Author : Sergej O. Demokritov
language : en
Publisher: CRC Press
Release Date : 2017-09-07
Spin Wave Confinement written by Sergej O. Demokritov and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-09-07 with Science categories.
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.
Three Dimensional Magnonics
DOWNLOAD
Author : Gianluca Gubbiotti
language : en
Publisher: CRC Press
Release Date : 2019-07-10
Three Dimensional Magnonics written by Gianluca Gubbiotti and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-10 with Science categories.
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.
Three Dimensional Magnonics
DOWNLOAD
Author : Gianluca Gubbiotti
language : en
Publisher: CRC Press
Release Date : 2019-07-10
Three Dimensional Magnonics written by Gianluca Gubbiotti and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-10 with Science categories.
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.