Thermodynamic and Magnetic Properties of Rare-earth Compounds from Density Functional Theory PDF Download
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Author: Zhaosen Liu
Publisher:
ISBN:
Category : Seltenerdmetall - Anorganische Verbindungen - Magnetische Eigenschaft - Thermodynamische Eigenschaft - Magnetismus - Kristallstruktur
Languages : en
Pages : 101
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Book Description
Author: Zhaosen Liu
Publisher:
ISBN:
Category : Seltenerdmetall - Anorganische Verbindungen - Magnetische Eigenschaft - Thermodynamische Eigenschaft - Magnetismus - Kristallstruktur
Languages : en
Pages : 101
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Book Description
Author: R. Elliott
Publisher: Springer Science & Business Media
ISBN: 1475756917
Category : Technology & Engineering
Languages : en
Pages : 430
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Book Description
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.
Author: Changzhen Wang
Publisher: Springer Nature
ISBN: 9811941785
Category : Technology & Engineering
Languages : en
Pages : 369
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Book Description
This book starts with a theoretical introduction of the rare earth materials, and it subsequently analyzes the essential characteristics of these materials from elements, compounds to physical chemistry and metal materials, etc. Under the supplementary explanation of experimental data and results, the research is gradually guided into the multi-domain application scene. Through extensive analyses, this book displays comprehensively the distinguished values of the rare earth materials and the theoretical, empirical, and practical significance of rare earth materials is unraveled. It also covers an exhaustive review of 17 rare earth elements, their characteristics, and more possibilities in physical chemistry, functional materials, metallurgy, composites and engineering, and their prospects in production and technical applications. In-depth account of the whole spectrum of rare earth material research makes this book a unique reference to academic researchers, students, and engineers.
Author: Karl A. Gschneidner
Publisher: North Holland
ISBN: 9780444820143
Category : Science
Languages : en
Pages : 464
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Book Description
Volume 20 completes the second decade of volumes in this series and focuses on the physical aspects of metallic compounds. Research efforts on metallic rare earth compounds started in earnest about 50 years ago and received a significant boost with the discovery of the RCo5 permanent magnets about 12 years later. During this time much has been learned about the structure as well as the electrical, magnetic and thermal properties of approximately 2500 binary rare earth metallic compounds. However, if one considers the possible true ternary compounds and possible pseudo-binary ternary alloys formed by mixing two binary compounds, there is still a wealth of knowledge to be obtained from these still-to-be discovered materials. This volume makes a start in this direction. Chapter one deals with the Fermi surfaces of rare earth (Y, La, Ce, Pr, Nd, Sm, Gd and Yb) intermetallic compounds. It begins with an introduction to the relevant theories required to describe the electrons near the Fermi surface and then to the basic experimental techniques to study these surfaces. The main portion of the chapter is devoted to a comparison of the experimental results with the band structure calculations for a large number of compounds. Chapter two examines the world of thin films of rare earth metals, alloys and compounds. The three main topics covered are the pure metals themselves, metallic alloys and compounds, and metalloid compounds. The next chapter is devoted to hydrogen in metals and their binary compounds RH2 and RH3. One of the critical problems is the purity of the starting rare earth metal itself because phase relations can be greatly affected by impurities and attention is therefore paid to the preparation of specimens and the phase diagrams. Structural properties, kinetics and thermodynamic behavior, as well as electronic, magnetic and thermal properties are reviewed as well. Also examined is the profound influence of hydrogen on the magnetic properties by the mediation of RKKY interaction in these materials. The final chapter is an update on the magnetic behaviors of lanthanide intermetallic compounds, an area which has seen many new developments in the last 15 years. The chapter is divided into two main parts. Part one is devoted to 3d magnetism where both the 3d metal and lanthanide element contribute to the magnetic behavior, and the second part is concerned with lanthanide magnetism itself.
Author: Bill Edward Higgins
Publisher:
ISBN:
Category :
Languages : en
Pages : 376
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Book Description
Author: R. L. Montgomery
Publisher:
ISBN:
Category : Earths
Languages : en
Pages : 32
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Book Description
Author:
Publisher: Elsevier
ISBN: 044463875X
Category : Science
Languages : en
Pages : 350
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Book Description
Handbook on the Physics and Chemistry of Rare Earths: Including Actinides, Volume 51, is a continuous series of books covering all aspects of rare earth science, including chemistry, life sciences, materials science and physics. This latest release includes chapters on the Effect of Pressure on the Interplay Between Orbital and Magnetic Ordering, Kondo Effect, Valence Fluctuation, and Superconductivity in Rare-Earth Compounds and a section on Rare-Earth: Doped Waveguide Amplifiers and Lasers. The book's main emphasis is on rare earth elements [Sc, Y, and the lanthanides (La through Lu], but whenever relevant, information is also included on the closely related actinide elements. Individual chapters in the ongoing series consist of comprehensive, broad, up-to-date, critical reviews written by highly experienced, invited experts. The series, which was started in 1978 by Professor Karl A. Gschneidner Jr., combines, and integrates, both the fundamentals and applications of these elements with two published volumes each year. Presents up-to-date overviews and new developments in the field of rare earths, covering both their physics and chemistry Contains Individual chapters that are comprehensive and broad, with critical reviews Provides contributions from highly experienced, invited experts
Author: Andrej Szytula
Publisher: CRC Press
ISBN: 0429607318
Category : Science
Languages : en
Pages : 294
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Book Description
Rare-earth intermetallics, also known as lanthanide elements, play an important role in the study of magnetic materials and the development of semi- and super-conducting materials. This handbook provides an up-to-date compilation of crystallographic, physical, and magnetic data on rare-earth intermetallic compounds. Over 20 different structure types are described in detail with an emphasis on how crystal structure can affect magnetic properties. Theoretical models for magnetic interactions are described as well as the impact of crystal electric fields on transport properties, magneto crystalline anistropy and hyperfine interactions. This book provides materials scientists, engineers and physicists with all the critical information needed to use rare-earth intermetallics effectively in the development of new materials.
Author: Uygun V. Valiev
Publisher: Scientific Research Publishing, Inc. USA
ISBN: 1618960547
Category : Science
Languages : en
Pages : 146
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Book Description
A comparison of theory with experiment is made for rare-earth compounds with garnet structure and orthoaluminate whose optical, magnetic and magnetooptical features have been studied sufficiently well by now.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 960
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Book Description
