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Author : Steven D. Phillips
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (222 download)
Download or read book Spin Wave Resonance in Ferromagnetic Thin Films written by Steven D. Phillips and published by . This book was released on 1974 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Anjan Barman
Publisher : Springer
ISBN 13 : 3319662961
Total Pages : 166 pages
Book Rating : 4.3/5 (196 download)
Download or read book Spin Dynamics and Damping in Ferromagnetic Thin Films and Nanostructures written by Anjan Barman and published by Springer. This book was released on 2017-12-27 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the latest developments in the field of spin dynamics and magnetic damping. It discusses the various ways to tune damping, specifically, dynamic and static control in a ferromagnetic layer/heavy metal layer. In addition, it addresses all optical detection techniques for the investigation of modulation of damping, for example, the time-resolved magneto-optical Kerr effect technique.
Author : Eugene Charles Colalongo
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (525 download)
Download or read book Ferromagnetic and Spin-wave Resonance in Thin Films of Fe-Ni Alloys written by Eugene Charles Colalongo and published by . This book was released on 1968 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John William Hartwell
Publisher :
ISBN 13 :
Total Pages : 166 pages
Book Rating : 4.:/5 (211 download)
Download or read book A Theoretical Treatment of Standing Spin Wave Resonances in Ferromagnetic Thin Films ... written by John William Hartwell and published by . This book was released on 1967 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: A theory of spin wave resonance in ferromagnetic thin films is developed in a manner that permits a computation of the real and imaginary parts of the circularly polarized rf fields as well as the power absorption spectrum. Only the case of the dc field intensity applied normal to the surface of the film is considered, and the saturation magnetization is taken as constant throughout the body of the film. Variations in the dc fields near the surfaces are treated in the boundary conditions for the rf magnetization by considering the unsymmetrical nature of the exchange interaction at the surfaces. The boundary conditions are characterized by a constant for each surface that controls the degree of surface pinning in the rf magnetization. Damping is included in the formulation by means of a phenomenological constant in the spin wave equation and by simultaneous solution of this equation with Maxwell's equations for a conductor. The results of a computer program are presented showing the roles of the various parameters in determining the power absorption spectrum and the rf fields. A comparison with experimental spectra is made, and an anomalous resonance at field intensities higher than that for the principal resonance is predicted. (Author).
Author : Korbinian Perzlmaier
Publisher :
ISBN 13 : 9783832519049
Total Pages : 0 pages
Book Rating : 4.5/5 (19 download)
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.
Author : M G Cottam
Publisher : World Scientific
ISBN 13 : 981450548X
Total Pages : 475 pages
Book Rating : 4.8/5 (145 download)
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.
Author : Martin William Lawrence
Publisher :
ISBN 13 :
Total Pages : 188 pages
Book Rating : 4.:/5 (216 download)
Download or read book Spin Wave Resonance in Thin Ferromagnetic Films written by Martin William Lawrence and published by . This book was released on 1969 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : William Charles Holzer
Publisher :
ISBN 13 :
Total Pages : 94 pages
Book Rating : 4.:/5 (21 download)
Download or read book Standing Spin Wave Resonance in Magnetic Thin Films written by William Charles Holzer and published by . This book was released on 1968 with total page 94 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Elsevier
ISBN 13 : 044459826X
Total Pages : 512 pages
Book Rating : 4.4/5 (445 download)
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 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: Modern Problems in Condensed Matter Sciences, Volume 22.2: Spin Waves and Magnetic Excitations focuses on the processes, methodologies, reactions, principles, and approaches involved in spin waves and magnetic excitations, including magnetic systems, fluctuations, resonance, and spin dynamics. The selection first elaborates on spin-wave resonance in metals, excitations in low-dimensional magnetic systems, and the theory of magnetic excitations in disordered systems. Topics include spin waves in ferromagnets with weak fluctuations of the exchange interaction; dynamics of propagating excitations; models of two-dimensional magnetic systems; spin-wave resonance in bulk metals; and standing spin-wave resonance in thin films. The manuscript then ponders on spin dynamics of amorphous magnets and magnetic excitations in spin glasses, including dynamics in reentrant spin glasses, dynamics of classical spin glasses, spin dynamical theory, spin dynamics of locally isotropic materials, and effects of dilution. The book takes a look at nuclear spin and magnetoelastic excitations and magnetic impuritons in antiferromagnetic dielectric crystals. Discussions focus on coherent and incoherent impurity excitations, equations of motion and the energy of a magnetoelastic medium, magnetoelastic excitations near magnetic orientational phase transitions, and the effect of frequency pulling on the behavior of nuclear spin echo signals. The selection is a vital source of data for researchers interested in spin waves and magnetic excitations.
Author : O. Glenn Ramer
Publisher :
ISBN 13 :
Total Pages : 298 pages
Book Rating : 4.:/5 (436 download)
Download or read book Surface Effects on Spinwave Resonance in Thin Magnetic Films written by O. Glenn Ramer and published by . This book was released on 1976 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, ferromagnetic spinwave resonance in magnetic thin films has been used as a tool for studying the properties of magnetic materials. A full understanding of the boundary conditions at the surface of the magnetic material is extremely important. Such an understanding has been the general objective of this thesis. The approach has been to investigate various hypotheses of the surface condition and to compare the results of these models with experimental data. The conclusion is that the boundary conditions are largely due to thin surface regions with magnetic properties different from the bulk. In the calculations these regions were usually approximated by uniform surface layers; the spins were otherwise unconstrained except by the same mechanisms that exist in the bulk (i.e., no special "pinning" at the surface atomic layer is assumed). The variation of the ferromagnetic spinwave resonance spectra in YIG films with frequency, temperature, annealing, and orientation of applied field provided an excellent experimental basis for the study. This thesis can be divided into two parts. The first part is ferromagnetic resonance theory; the second part is the comparison of calculated with experimental data in YIG films. Both are essential in understanding the conclusion that surface regions with properties different from the bulk are responsible for the resonance phenomena associated with boundary conditions.
Author : Spencer Wuu-Ben Chen
Publisher :
ISBN 13 :
Total Pages : 222 pages
Book Rating : 4.:/5 (1 download)
Download or read book Spin Wave Resonance in Gd-Fe Alloy Thin Films written by Spencer Wuu-Ben Chen and published by . This book was released on 1982 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : John O. Atkins
Publisher :
ISBN 13 :
Total Pages : 154 pages
Book Rating : 4.:/5 (137 download)
Download or read book Spin Wave Resonance in Multilayered Thin Films written by John O. Atkins and published by . This book was released on 1969 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Paul W. Quinlan
Publisher :
ISBN 13 :
Total Pages : 110 pages
Book Rating : 4.:/5 (359 download)
Download or read book A Study of Spin Wave Modes in Ferromagnetic Thin Films written by Paul W. Quinlan and published by . This book was released on 1971 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Corciovei
Publisher :
ISBN 13 :
Total Pages : 21 pages
Book Rating : 4.:/5 (551 download)
Download or read book Spin-wave Method in the Study of Ferromagnetic Thin Films written by A. Corciovei and published by . This book was released on 1963 with total page 21 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christopher H. Bajorek
Publisher :
ISBN 13 :
Total Pages : 254 pages
Book Rating : 4.:/5 (436 download)
Download or read book Spin Wave Resonance in Ferromagnetic Films written by Christopher H. Bajorek and published by . This book was released on 1972 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Daniel D. Stancil
Publisher : Springer Science & Business Media
ISBN 13 : 0387778659
Total Pages : 348 pages
Book Rating : 4.3/5 (877 download)
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.
Author : Michael Mead Thayer
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (172 download)
Download or read book Spin Wave Resonance in Thin Films written by Michael Mead Thayer and published by . This book was released on 1983 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
