Propagation And Interference Of Spin Waves In Ferromagnetic Thin Films

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Propagation and Interference of Spin Waves in Ferromagnetic Thin Films

Author : Korbinian Perzlmaier
Publisher :
ISBN 13 : 9783832519049
Total Pages : 0 pages
Book Rating : 4.5/5 (19 download)

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Book Synopsis Propagation and Interference of Spin Waves in Ferromagnetic Thin Films by : Korbinian Perzlmaier

Download or read book Propagation and Interference of Spin Waves in Ferromagnetic Thin Films written by Korbinian Perzlmaier and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis deals with the propagation of spin waves in thin Ni80Fe20 films. Its specific aims are to experimentally determine a dispersion relation for propagating spin waves in thin ferromagnetic films, and to determine phase velocities, group velocities and damping. Additonally, an analytic dispersion relation based upon the linearized Landau-Lifshitz-Gilbert (LLG) equation is derived, from which the experimental findings can be reproduced using a theoretical model. Further on, this thesis reports on the direct observation of the interference of spin waves. This thesis is structured as follows: After an introduction in chapter 1, the basic principles of magnetostatics are sketched in chapter 2, followed by the principles of magnetodynamics in chapter 3. Based upon these principles, in chapter 4 a theory for the propagation of spin waves in ferromagnetic thin films is developed. The experimental part of this thesis begins with an overview of the experimental setup for Time Resolved Scanning Kerr Microscopy (TRSKEM) in chapter 5, and continues with the results of spin wave propagation and interference in chapter 6. The experimental results are compared to the theoretical predictions of the model developed in chapter 4. Chapter 7 gives a summary of the results and an outlook towards possible future developments. The appendix gives additional information on experimental and theoretical details.

Linear And Nonlinear Spin Waves In Magnetic Films And Superlattices

Author : M G Cottam
Publisher : World Scientific
ISBN 13 : 981450548X
Total Pages : 475 pages
Book Rating : 4.8/5 (145 download)

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Book Synopsis Linear And Nonlinear Spin Waves In Magnetic Films And Superlattices by : M G Cottam

Download or read book Linear And Nonlinear Spin Waves In Magnetic Films And Superlattices written by M G Cottam and published by World Scientific. This book was released on 1994-03-28 with total page 475 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past few years, there has been a rapidly growing interest in the properties of spin waves (or magnons) in ordered magnetic materials. These are the low-lying excitations that characterize the dynamical behavior of the magnetization variables in ferromagnets, ferrimagnets and antiferromagnets, particularly at low temperatures. Many of the recent developments concerning spin waves have been directed towards understanding their behavior in limited magnetic samples. At the same time, there have been dramatic advances in the experimental techniques, both for preparing high-quality magnetic samples in the form of thin films and superlattices and for the study of the spin-wave excitations themselves. Magnetic thin films have long been of technological as well as scientific interest and an understanding of both the linear and nonlinear aspects of their magnetic behavior is important.

Spin Wave Confinement

Author : Sergej O. Demokritov
Publisher : CRC Press
ISBN 13 : 1351617214
Total Pages : 436 pages
Book Rating : 4.3/5 (516 download)

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Book Synopsis Spin Wave Confinement by : Sergej O. Demokritov

Download or read book Spin Wave Confinement written by Sergej O. Demokritov and published by CRC Press. This book was released on 2017-09-07 with total page 436 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Magnetic Nanostructures

Author : Hartmut Zabel
Publisher : Springer
ISBN 13 : 3642320422
Total Pages : 268 pages
Book Rating : 4.6/5 (423 download)

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Book Synopsis Magnetic Nanostructures by : Hartmut Zabel

Download or read book Magnetic Nanostructures written by Hartmut Zabel and published by Springer. This book was released on 2012-09-15 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomagnetism and spintronics is a rapidly expanding and increasingly important field of research with many applications already on the market and many more to be expected in the near future. This field started in the mid-1980s with the discovery of the GMR effect, recently awarded with the Nobel prize to Albert Fert and Peter Grünberg. The present volume covers the most important and most timely aspects of magnetic heterostructures, including spin torque effects, spin injection, spin transport, spin fluctuations, proximity effects, and electrical control of spin valves. The chapters are written by internationally recognized experts in their respective fields and provide an overview of the latest status.

Magnetization Dynamics in Magnetically Coupled Heterostructures

Author : Alexander Kaiser
Publisher : Forschungszentrum Jülich
ISBN 13 : 389336577X
Total Pages : 137 pages
Book Rating : 4.8/5 (933 download)

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Book Synopsis Magnetization Dynamics in Magnetically Coupled Heterostructures by : Alexander Kaiser

Download or read book Magnetization Dynamics in Magnetically Coupled Heterostructures written by Alexander Kaiser and published by Forschungszentrum Jülich. This book was released on 2009 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Spin Waves

Author : Daniel D. Stancil
Publisher : Springer Science & Business Media
ISBN 13 : 0387778659
Total Pages : 348 pages
Book Rating : 4.3/5 (877 download)

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Book Synopsis Spin Waves by : Daniel D. Stancil

Download or read book Spin Waves written by Daniel D. Stancil and published by Springer Science & Business Media. This book was released on 2009-04-05 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins by introducing magnetism and discusses magnetic properties of materials, magnetic moments of atoms and ions, and the elements important to magnetism. It covers magnetic susceptibilities and electromagnetic waves in anisotropic dispersive media among other topics. There are problems at the end of each chapter, many of which serve to expand or explain the material in the text. The bibliographies for each chapter give an entry to the research literature.

Three-Dimensional Magnonics

Author : Gianluca Gubbiotti
Publisher : CRC Press
ISBN 13 : 1000024547
Total Pages : 264 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Three-Dimensional Magnonics by : Gianluca Gubbiotti

Download or read book Three-Dimensional Magnonics written by Gianluca Gubbiotti and published by CRC Press. This book was released on 2019-07-10 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Spin-wave Effects in the Magnetization Reversal of a Thin Ferromagnetic Film

Author : Kenneth Jeremy Harte
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Spin-wave Effects in the Magnetization Reversal of a Thin Ferromagnetic Film by : Kenneth Jeremy Harte

Download or read book Spin-wave Effects in the Magnetization Reversal of a Thin Ferromagnetic Film written by Kenneth Jeremy Harte and published by . This book was released on 1964 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing

Author : Jayasimha Atulasimha
Publisher : John Wiley & Sons
ISBN 13 : 1118869265
Total Pages : 356 pages
Book Rating : 4.1/5 (188 download)

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Book Synopsis Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing by : Jayasimha Atulasimha

Download or read book Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing written by Jayasimha Atulasimha and published by John Wiley & Sons. This book was released on 2016-03-07 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomagnetic and spintronic computing devices are strong contenders for future replacements of CMOS. This is an important and rapidly evolving area with the semiconductor industry investing significantly in the study of nanomagnetic phenomena and in developing strategies to pinpoint and regulate nanomagnetic reliably with a high degree of energy efficiency. This timely book explores the recent and on-going research into nanomagnetic-based technology. Key features: Detailed background material and comprehensive descriptions of the current state-of-the-art research on each topic. Focuses on direct applications to devices that have potential to replace CMOS devices for computing applications such as memory, logic and higher order information processing. Discusses spin-based devices where the spin degree of freedom of charge carriers are exploited for device operation and ultimately information processing. Describes magnet switching methodologies to minimize energy dissipation. Comprehensive bibliographies included for each chapter enabling readers to conduct further research in this field. Written by internationally recognized experts, this book provides an overview of a rapidly burgeoning field for electronic device engineers, field-based applied physicists, material scientists and nanotechnologists. Furthermore, its clear and concise form equips readers with the basic understanding required to comprehend the present stage of development and to be able to contribute to future development. Nanomagnetic and Spintronic Devices for Energy-Efficient Memory and Computing is also an indispensable resource for students and researchers interested in computer hardware, device physics and circuits design.

Heusler Alloys

Author : Claudia Felser
Publisher : Springer
ISBN 13 : 3319214497
Total Pages : 486 pages
Book Rating : 4.3/5 (192 download)

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Book Synopsis Heusler Alloys by : Claudia Felser

Download or read book Heusler Alloys written by Claudia Felser and published by Springer. This book was released on 2015-11-12 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives an overview of the physics of Heusler compounds ranging from fundamental properties of these alloys to their applications. Especially Heusler compounds as half-metallic ferromagnetic and topological insulators are important in condensed matter science due to their potential in magnetism and as materials for energy conversion. The book is written by world-leaders in this field. It offers an ideal reference to researchers at any level.

Solid State Physics

Author :
Publisher : Elsevier
ISBN 13 : 0323989128
Total Pages : 138 pages
Book Rating : 4.3/5 (239 download)

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Book Synopsis Solid State Physics by :

Download or read book Solid State Physics written by and published by Elsevier. This book was released on 2022-10-28 with total page 138 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid State Physics, Volume 73, the latest release in this serial that highlights new advances in the field, presents interesting chapters on a variety of current topics in the field, with each chapter written by an international board of authors. Provides the authority and expertise of leading contributors from an international board of authors Presents the latest release in Solid State Physics

Magnetization Oscillations and Waves

Author : A.G. Gurevich
Publisher : CRC Press
ISBN 13 : 0429605757
Total Pages : 460 pages
Book Rating : 4.4/5 (296 download)

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Book Synopsis Magnetization Oscillations and Waves by : A.G. Gurevich

Download or read book Magnetization Oscillations and Waves written by A.G. Gurevich and published by CRC Press. This book was released on 2020-12-17 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by two well-known researchers in the field, this useful reference takes an applied approach to high frequency processes including oscillations and waves in ferromagnets, antiferromagnets, and ferrimagnets. Problems evaluated include ferromagnetic and antiferromagnetic resonances, spin waves, nonlinear processes, and high frequency manifestations of interactions between the magnetic system and other systems of magnetically ordered substances as elastic waves and charge carriers. Unlike previous monographs on this subject, which are highly theoretical and written for very advanced readers, this book requires only an average college background in mathematics and experimental physics. It will be a valuable addition to the library of engineers and scientists in research and development for communications applications, and scientists interested in nonlinear magnetic phenomena. It also serves as an excellent introduction to the topic for newcomers in the field. Magnetization Oscillations and Waves not only presents results but also shows readers how to obtain them; most formulas are derived with so many details that readers can reproduce them. The book includes many summaries and tables and detailed references to significant work in the area by European researchers.

Spin Waves and Magnetic Excitations

Author :
Publisher : Elsevier
ISBN 13 : 0444598308
Total Pages : 550 pages
Book Rating : 4.4/5 (445 download)

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Book Synopsis Spin Waves and Magnetic Excitations by :

Download or read book Spin Waves and Magnetic Excitations written by and published by Elsevier. This book was released on 2012-12-02 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Problems in Condensed Matter Sciences, Volume 22.1: Spin Waves and Magnetic Excitations, Part I focuses on the principles, methodologies, approaches, and reactions involved in spin waves and magnetic excitations, including, Brillouin-Mandelstam light scattering, optical magnetic excitations, and magnetic dielectrics. The selection first elaborates on spin waves in magnetic dielectrics current status of the theory and light scattering from spin waves. Discussions focus on magneto-optic effects and the mechanism of light scattering in magnets, Brillouin-Mandelstam light scattering, Raman scattering, Collinear Heisenberg ferromagnet, low-temperature phase transitions, and low-dimensional systems. The text then ponders on optical magnetic excitations, spin waves above the threshold of parametric excitations, and theory of spin excitations in rare earth systems. Topics include Hamiltonian for rare earth systems, parametric instability of spin waves in magnetic dielectrics, nonstationary processes in parametric excitation of spin waves, radiative decay of magnetic excitons, and mechanism of the generation of magnetic excitations by light. The book tackles 4f moments and their interaction with conduction electrons and neutron scattering studies of magnetic excitations in itinerant magnets, including magnetic excitations at finite and low temperatures, paramagnetic scattering, coupling to conduction electrons, and virtual magnetic excitations. The selection is highly recommended for researchers wanting to study spin waves and magnetic excitations.

Investigating a Phase Conjugate Mirror for Magnon-Based Computing

Author : Alistair Inglis
Publisher : Springer Nature
ISBN 13 : 3030497453
Total Pages : 122 pages
Book Rating : 4.0/5 (34 download)

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Book Synopsis Investigating a Phase Conjugate Mirror for Magnon-Based Computing by : Alistair Inglis

Download or read book Investigating a Phase Conjugate Mirror for Magnon-Based Computing written by Alistair Inglis and published by Springer Nature. This book was released on 2020-08-08 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work provides a convincing motivation for and introduction to magnon-based computing. The challenges faced by the conventional semiconductor-transistor-based computing industry are contrasted with the many exciting avenues for developing spin waves (or magnons) as a complementary technology wherein information can be encoded, transmitted, and operated upon: essential ingredients for any computing paradigm. From this general foundation, one particular operation is examined: phase conjugation via four-wave-mixing (FWM). The author constructs an original theory describing the generation of a phase conjugate mirror with the remarkable property that any incident spin wave will be reflected back along the same direction of travel. After establishing a theoretical framework, the careful design of the experiment is presented, followed by the demonstration of a magnetic phase conjugate mirror using four-wave mixing for the first time. The thesis concludes with an investigation into the unexpected fractal behaviour observed arising from the phase conjugate mirror – a result that is testament to the richness and vibrancy of these highly nonlinear spin wave systems.

Scientific and Technical Aerospace Reports

Author :
Publisher :
ISBN 13 :
Total Pages : 1108 pages
Book Rating : 4.:/5 (31 download)

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Book Synopsis Scientific and Technical Aerospace Reports by :

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1986 with total page 1108 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Photoacoustic, Photothermal and Photochemical Processes at Surfaces and in Thin Films

Author : Peter Hess
Publisher : Springer Science & Business Media
ISBN 13 : 3642839452
Total Pages : 385 pages
Book Rating : 4.6/5 (428 download)

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Book Synopsis Photoacoustic, Photothermal and Photochemical Processes at Surfaces and in Thin Films by : Peter Hess

Download or read book Photoacoustic, Photothermal and Photochemical Processes at Surfaces and in Thin Films written by Peter Hess and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 385 pages. Available in PDF, EPUB and Kindle. Book excerpt: Review articles by leading scientists in their fields are brought together in this volume to provide a comprehensive treatment of photoacoustic, photothermal and photochemical processes at surfaces and in thin films. The articles introduce the fields, review present knowledge and conclude with latest developments and future prospects. Topics covered include laser-induced desorption, ablation and surface damage; surface acoustic waves; photothermal and photoacoustic characterization of thin films and interfaces; depth profiling in the frequency and time domains; remote testing and nondestructive evaluation; materials characterization; and new theoretical approaches using fractals. The book will interest newcomers to photoacoustics, since it gives an overview of current research and details of experimental methods. It will also be a source of information for those already in the field due to its clear presentation of theory and experimental results. All relevant literature references in this rapidly expanding field are included.

Handbook of Spintronics

Author : Yongbing Xu
Publisher : Springer
ISBN 13 : 9789400768918
Total Pages : 0 pages
Book Rating : 4.7/5 (689 download)

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Book Synopsis Handbook of Spintronics by : Yongbing Xu

Download or read book Handbook of Spintronics written by Yongbing Xu and published by Springer. This book was released on 2015-10-14 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over two volumes and 1500 pages, the Handbook of Spintronics will cover all aspects of spintronics science and technology, including fundamental physics, materials properties and processing, established and emerging device technology and applications. Comprising 60 chapters from a large international team of leading researchers across academia and industry, the Handbook provides readers with an up-to-date and comprehensive review of this dynamic field of research. The opening chapters focus on the fundamental physical principles of spintronics in metals and semiconductors, including an introduction to spin quantum computing. Materials systems are then considered, with sections on metallic thin films and multilayers, magnetic tunnelling structures, hybrids, magnetic semiconductors and molecular spintronic materials. A separate section reviews the various characterisation methods appropriate to spintronics materials, including STM, spin-polarised photoemission, x-ray diffraction techniques and spin-polarised SEM. The third part of the Handbook contains chapters on the state of the art in device technology and applications, including spin valves, GMR and MTJ devices, MRAM technology, spin transistors and spin logic devices, spin torque devices, spin pumping and spin dynamics and other topics such as spin caloritronics. Each chapter considers the challenges faced by researchers in that area and contains some indications of the direction that future work in the field is likely to take. This reference work will be an essential and long-standing resource for the spintronics community.