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Author : A. Furrer
Publisher :
ISBN 13 : 9781461588023
Total Pages : 380 pages
Book Rating : 4.5/5 (88 download)
Download or read book Crystal Field Effects in Metals and Alloys written by A. Furrer and published by . This book was released on 1977-04-01 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Furrer
Publisher : Springer Science & Business Media
ISBN 13 : 1461588014
Total Pages : 378 pages
Book Rating : 4.4/5 (615 download)
Download or read book Crystal Field Effects in Metals and Alloys written by A. Furrer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt: The idea of this conference grew out of the rapidly increas ing volume of experimental facts. and theoretical concepts related to the problem of crystal-field effects in metals and alloys. The crystal field plays an important role in the understanding of the energetic level structure of ions in condensed matter. In partic ular, the magnetic properties of rare earth metals and alloys are strongly influenced by the crystal field. In the phenomenological theory the crystal field successfully describes the static and dynamic magnetic properties of these systems. On the other hand the microscopic origin of the crystal field in metals is not yet fully understood. However, recent years have seen some of the areas of crystal-field effects mature to the point that they should be summarized and brought to the active notice of a larger audience. In addition, a number of exciting developments have occured which deserve attention. This book contains 13 invited and 45 contributed papers pres ented at the 2nd international conference on crystal-field effects in metals and alloys held at ZUrich, Switzerland, September 1-4, 1976. Emphasis was placed on the following specific categories of interest: spin waves and excitons, soft modes and critical effects, magnetic properties, physical properties influenced by crystal field effects, actinides and valency. Because the conference was relatively small, about 120 participants, and because the topic was relatively narrow, recent work in the field could be treated thor oughly and the present state of knowledge assessed comprehensively.
Author :
Publisher :
ISBN 13 :
Total Pages : 752 pages
Book Rating : 4.:/5 (3 download)
Download or read book Energy Research Abstracts written by and published by . This book was released on 1992 with total page 752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 604 pages
Book Rating : 4.3/5 ( download)
Download or read book Research in Progress written by and published by . This book was released on 1976 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Army Research Office
Publisher :
ISBN 13 :
Total Pages : 458 pages
Book Rating : 4.3/5 (243 download)
Download or read book Research in Progress Between ... and written by United States. Army Research Office and published by . This book was released on 1978 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher : Elsevier
ISBN 13 : 0444598308
Total Pages : 550 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 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.
Author :
Publisher :
ISBN 13 :
Total Pages : 1584 pages
Book Rating : 4.:/5 (319 download)
Download or read book Metals Abstracts written by and published by . This book was released on 1994 with total page 1584 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : J. Mulak
Publisher : Elsevier
ISBN 13 : 9780080530710
Total Pages : 316 pages
Book Rating : 4.5/5 (37 download)
Download or read book The Effective Crystal Field Potential written by J. Mulak and published by Elsevier. This book was released on 2000-06-22 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: As it results from the very nature of things, the spherical symmetry of the surrounding of a site in a crystal lattice or an atom in a molecule can never occur. Therefore, the eigenfunctions and eigenvalues of any bound ion or atom have to differ from those of spherically symmetric respective free ions. In this way, the most simplified concept of the crystal field effect or ligand field effect in the case of individual molecules can be introduced. The conventional notion of the crystal field potential is narrowed to its non-spherical part only through ignoring the dominating spherical part which produces only a uniform energy shift of gravity centres of the free ion terms. It is well understood that the non-spherical part of the effective potential "seen" by open-shell electrons localized on a metal ion plays an essential role in most observed properties. Light adsorption, electron paramagnetic resonance, inelastic neutron scattering and basic characteristics derived from magnetic and thermal measurements, are only examples of a much wider class of experimental results dependent on it. The influence is discerned in all kinds of materials containing unpaired localized electrons: ionic crystals, semiconductors and metallic compounds including materials as intriguing as high-Tc superconductors, or heavy fermion systems. It is evident from the above that we deal with a widespread effect relative to all free ion terms except those which can stand the lowered symmetry, e.g. S-terms. Despite the universality of the phenomenon, the available handbooks on solid state physics pay only marginal attention to it, merely making mention of its occurrence. Present understanding of the origins of the crystal field potential differs essentially from the pioneering electrostatic picture postulated in the twenties. The considerable development of the theory that has been put forward since then can be traced in many regular articles scattered throughout the literature. The last two decades have left their impression as well but, to the authors' best knowledge, this period has not been closed with a more extended review. This has also motivated us to compile the main achievements in the field in the form of a book.
Author :
Publisher :
ISBN 13 :
Total Pages : 612 pages
Book Rating : 4.E/5 ( download)
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1976 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A.M. Tishin
Publisher : CRC Press
ISBN 13 : 1420033379
Total Pages : 489 pages
Book Rating : 4.4/5 (2 download)
Download or read book The Magnetocaloric Effect and its Applications written by A.M. Tishin and published by CRC Press. This book was released on 2016-04-19 with total page 489 pages. Available in PDF, EPUB and Kindle. Book excerpt: The magnetocaloric effect describes the change in temperature of a magnetic material under adiabatic conditions through the application or removal of an external magnetic field. This effect is particularly pronounced at temperatures and fields corresponding to magnetic phase transitions, and it is a powerful and widely used tool for investigating t
Author :
Publisher :
ISBN 13 :
Total Pages : 276 pages
Book Rating : 4.3/5 (91 download)
Download or read book Physics in Canada written by and published by . This book was released on 1977 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert Guertin
Publisher : Springer Science & Business Media
ISBN 13 : 1468486462
Total Pages : 571 pages
Book Rating : 4.4/5 (684 download)
Download or read book Crystalline Electric Field Effects in f-Electron Magnetism written by Robert Guertin and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present conference, the fourth successive on this subject, was organized to commemorate the 75th birthday of Professor Wtodzimierz Trzebiatowski, one of the pioneers in the field of f-electron materials structure, particularly in the magnetism of actinides. This volume contains 64 papers presented at the conference held in Wroctaw, Poland, September 22-25, 1981. Twenty-one were invited talks. About 100 participants from 13 countries attended the meeting during four days of lecture presentation (note these two numbers have been constant for the last two conferences). The conference consisted of sessions devoted to the investigation of crystalline electric fields and structural effects by spectroscopic techniques, neutron diffraction, magnetic, thermodynamic and electrical measurements all over broad temperature, magnetic field and pressure ranges. Materials investigated included rare earth intermetallics, hydrides, diluted systems and actinides, and among them some exhibited singlet ground state behavior. The experimental results were supplemented by theory. It is our pleasure to mention those persons who helped us make the conference successful. The International Advisory Com mittee included W.J.L. Buyers, B.R. Cooper, J.E. Crow, P. Fulde, A. Furrer, T. Kasuya, L. Kowalewski, G.R. Lander, R. Lemaire and D. Wohlleben. We thank them for valuable suggestions concerning invited speakers. We also wish to thank the co-workers of the In stitute for Low Temperature and Structure Research of the Polish Academy of Sciences in Wroclaw, especially A. Baran, M. Grzebyk, K.
Author :
Publisher :
ISBN 13 :
Total Pages : 1338 pages
Book Rating : 4.3/5 (243 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1970 with total page 1338 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : T. F. Connolly
Publisher : Springer Science & Business Media
ISBN 13 : 1468413961
Total Pages : 183 pages
Book Rating : 4.4/5 (684 download)
Download or read book Bibliography of Magnetic Materials and Tabulation of Magnetic Transition Temperatures written by T. F. Connolly and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: This referenced compilation of magnetic transition temperatures represents (with the Addendum) papers actually received by the RMIC through May 1972 and consists of two lists (alphabetical by compounds), one for Curie and one for Neel temperatures. Where different values appeared in the literature for a single compound, all are listed with sepa rate references given for each. There is no attempt at critical evaluation, which, except for a few welt-studied and well characterized materials, would hardly be worth the effort. All that one can say for most of the compounds is that for a given material with a certain (or all too often uncertain) history of preparati'on and treatment, stoichiometry, homoge neity, and chemical or structural purity a magnetic transition was indicated at the temperature(s) listed. Only when the reasons for different values are explicitly stated in the literature do they appear as brief comments in the body of the lists. In order to include the most recent data, and to eliminate the delay involved in recomposition of the lists, an addendum is provided. While this requires the perusal of two lists rather than one, it does ensure that the compilation represents the entire RMIC collection at the moment of going to press. The 2478 references are restricted to those papers specifying a Curie or Neel temperature and do not reflect the complete magnetics literature even for the materials listed.
Author : Dmitry G. Eskin
Publisher : Springer
ISBN 13 : 3319948423
Total Pages : 320 pages
Book Rating : 4.3/5 (199 download)
Download or read book Solidification Processing of Metallic Alloys Under External Fields written by Dmitry G. Eskin and published by Springer. This book was released on 2018-10-09 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores the application of external physical fields to the solidification processing of metallic alloys. Leading academics from around the world present comprehensive and critical reviews on state-of-the-art research and discuss possible future directions. Major physical fields, including electromagnetic, electric, acoustic, and thermal, are considered. In addition, the most advanced synchrotron X-ray based real-time and in-situ studies and numerical modeling methodologies are reviewed and discussed, with a special emphasis on their applications to the solidification processes. Throughout, all chapters are illustrated with both historical and very recent research cases, including typical examples of in-situ studies, modeling, and simulation. This book contains essential knowledge and information suitable for a wide audience, from undergraduate and postgraduate students to academics, practicing researchers, and engineers in materials, metallurgy, and manufacturing.
Author : Clyde A. Morrison
Publisher : Springer Science & Business Media
ISBN 13 : 3642956866
Total Pages : 206 pages
Book Rating : 4.6/5 (429 download)
Download or read book Crystal Fields for Transition-Metal Ions in Laser Host Materials written by Clyde A. Morrison and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt: A researcher trying to predict or interpret spectra of transition metal ionsin possible laser host materials is confronted with a variety of different methods of describing the same physical situation. This book provides a systematic approach to the applied theory of crystal-field interactions of transition metal ions in 49 crystalline hosts that are or show promise of being good laser materials. The tables that make up the main part of the book present the experimentally determined parameters of the 3dN, 4dN, and 5dN transition-metal ions in the second, third, and fourth ionization states. These parameters have been converted to Slater and crystal-field parameters. The book is a source for research workers in laser development and in crystal-field theory, and for graduate students of solid state chemistry and physics.
Author : R. Elliott
Publisher : Springer Science & Business Media
ISBN 13 : 1475756917
Total Pages : 425 pages
Book Rating : 4.4/5 (757 download)
Download or read book Magnetic Properties of Rare Earth Metals written by R. Elliott and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: The rare earths have a unique place among the elements. Although very much alike chemically and in most phy~ical properties they each have very different and striking magnetic properties. The reason, of course, lies in their 4f electrons which determine the magnetic properties but have little effect on other chemical and physical behaviour. Although they are not rare, some indeed are among the more common heavy elements in the earth's crust, the difficulty of separation has meant that their intricate magnetic properties have only recently been unravelled. Now, however, the general pattern of their magnetism is well charted and the underlying theory is well understood. Both are thoroughly summarised in this book. It provides an excellent example of the kind of extensive synthesis which is possible with modem solid state physics. it represents only a high plateau in the ascent to complete understanding. But It will become clear to the reader that while the overall position is satisfactory there are many details still to be elucidated experimentally and much to be done theoretically before all the underlying forces are identified and estimated from a priori calculations. It is hoped that the book will provide a useful stimulus in this direction. It should also be of use to those who are interested in related disciplines, for example the rare earth compounds, or the transition metals. In addition rare earths promise to be important technologically as alloy constituents.
