Author: Stanford University. Microwave LaboratoryPublisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Magnetostatic and Magnetoelastic Waves
Author: Stanford University. Microwave LaboratoryPublisher:
ISBN:
Category :
Languages : en
Pages : 214
Book Description
Magnetostatic Waves and Their Application
Author: Pavel KabosPublisher: Springer Science & Business Media
ISBN: 9401112460
Category : Technology & Engineering
Languages : en
Pages : 315
Book Description
Magnetostatic Waves and their Applications is the first book devoted to magnetostatic waves. The book gives a thorough review of the field suitable for scientists, engineers and advanced students involved in magnetism and microwave electronics new to this area. It covers the field from essential physics to applications in microwave electronics, with details of the materials and materials processing methods included.
Theory of Magnetostatic Waves
Author: Daniel D StancilPublisher: Springer Science & Business Media
ISBN: 1461393388
Category : Science
Languages : en
Pages : 224
Book Description
Magnetic materials can support propagating waves of magnetization; since these are oscillations in the magnetostatic properties of the material, they are called magnetostatic waves (sometimes "magnons" or "magnetic polarons"). Under the proper circumstances these waves can exhibit, for example, either dispersive or nondispersive, isotropic or anisotropic propagation, nonreciprocity, frequency-selective nonlinearities, soliton propagation, and chaotic behavior. This rich variety of behavior has led to a number of proposed applications in microwave and optical signal processing. This textbook begins by discussing the basic physics of magnetism in magnetic insulators and the propagation of electromagnetic waves in anisotropic dispersive media. It then treats magnetostatic modes, describing how the modes are excited, how they propagate, and how they interact with light. There are problems at the end of each chapter; many of these serve to expand or explain the material in the text. To enhance the book's usefulness as a reference, the answers are given for many of the problems. The bibliographies for each chapter give an entry to the research literature. Magnetostatic Waves will thus serve not only as an introduction to an active area of research, but also as a handy reference for workers in the field.
Magnetization Oscillations and Waves
Author: Alexander G. GurevichPublisher: CRC Press
ISBN: 9780849394607
Category : Technology & Engineering
Languages : en
Pages : 460
Book Description
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.
Magnetization Oscillations and Waves
Author: Alexander G. GurevichPublisher: CRC Press
ISBN: 0429611277
Category : Science
Languages : en
Pages : 457
Book Description
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.
Studies of Magnetostatic Waves and Magnetoelastic Waves in YIG Using Optical Probing and Microwave Techniques
Author: Hung-Liang HuPublisher:
ISBN:
Category : Electric waves
Languages : en
Pages : 174
Book Description
The report describes in detail the technical progress made in studies of strong infrared light scattering from coherent spin waves during the second six months of a three year interdisciplinary research program. Coherent light scattering from coherent microwave spin waves in yttrium iron garnet (YIG) is studied theoretically and experimentally. The method is then used, in conjunction with standard microwave techniques, to probe the propagation of spin waves and magnetoelastic waves, in spatially-and/or-temporally-varying magnetic fields. The dispersion of magnetoelastic waves propagating parallel to saturation magnetization when the latter is in an arbitrary crystallographic direction, first presented by Morgenthaler, is rederived. The report discusses the first direct observation of strong Bragg Scattered infrared light (1150 nm wavelength) from coherent microwave spin waves.
Magnetoelastic and Magnetostatic Waves in Time Varying Magnetic Fields
Author: Sergio Machado RezendePublisher:
ISBN:
Category : Elasticity
Languages : en
Pages : 133
Book Description
The propagation of microwave magnetoelastic and magnetostatic waves in a ferromagnet subjected to pulsed magnetic fields is investigated both theoretically and experimentally. In the first part of the theoretical analysis, which is restricted to spatially uniform bias fields, the coupling between the magnetic and elastic systems is neglected. Using a coupled mode approach, it is found that plane spin waves propagate in magnetic field transients with negligible reflections, constant momentum and wavenumber, but variable frequency and power flow. These results are further elucidated by the study of a simple step transient case. The analysis is also extended to magnetostatic modes propagating in axially magnetized cylinders. In the presence of magnetoelastic interaction, the theory indicates that besides changes in frequency and in power flow, the field gradient causes group velocity modulation and changes in the time duration of wave packets. In addition there is an exchange of momentum between the different branches of the dispersion relation; this exchange is calculated in terms of critical field gradients. These critical gradients are given for both shear and longitudinal waves propagating along certain crystallographic directions. Experiments with magnetoelastic pulses in axially magnetized YIG rods confirm the theoretical predictions. (Author).
Bragg Diffraction of Light from Magnetostatic and Magnetoelastic Waves
Author: Stanford University. Microwave LaboratoryPublisher:
ISBN:
Category : Light
Languages : en
Pages : 162
Book Description
Theory of Magnetostatic Waves
Author: Daniel D. StancilPublisher:
ISBN:
Category : Magnetostatics
Languages : en
Pages : 242
Book Description
Bragg Diffraction of Light from Magnetostatic and Magnetoelastic Waves
Author: David Abbott WilsonPublisher:
ISBN:
Category : Diffraction
Languages : en
Pages : 172
Book Description
Theoretical and experimental investigations have been conducted on the use of Bragg and Raman-Nath diffraction of laser light from magnetostatic and magnetoelastic waves, propagating in Yttrium Iron Garnet (YIG). YIG is opaque to visible light, but highly transparent in the near infrared, and a light wavelength of 1.15 micrometers was therefore used. The properties of light diffraction from plane spin waves were derived, and shown to arise from the same magneto-optic effect which causes optical Faraday rotation. The linear magneto-optic coefficient m sub l, relating the change in dielectric constant to the rf magnetization components of the spin wave, was theoretically found to be 0.0000025/oe at a 1.15 micrometers wavelength. Experiments were carried out both for the purpose of verifying the predicted light diffraction behavior, and in order to use light diffraction as a tool in the study of magnetoelastic wave phenomena. Results are discussed. (Author).