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Structural And Crystal Chemical Properties Of Rare Earth Double Phosphates And Rare Earth Titanate Pyrochlores
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Book Synopsis Structural and Crystal Chemical Properties of Rare-earth Double Phosphates and Rare-earth Titanate Pyrochlores by : J. Matt Farmer
Download or read book Structural and Crystal Chemical Properties of Rare-earth Double Phosphates and Rare-earth Titanate Pyrochlores written by J. Matt Farmer and published by . This book was released on 2004 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Structural and Crystal Chemical Properties of Alkali Rare-earth Double Phosphates by :
Download or read book Structural and Crystal Chemical Properties of Alkali Rare-earth Double Phosphates written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: When appropriately activated, alkali rare-earth double phosphates of the form: M3RE(PO4)2 (where M denotes an alkali metal and RE represents either a rare-earth element or Y or Sc) are of interest for use as inorganic scintillators for radiation detection at relatively long optical emission wavelengths. These compounds exhibit layered crystal structures whose symmetry properties depend on the relative sizes of the rare-earth and alkali-metal cations. Single-crystal X-ray and powder neutron diffraction methods were used here to refine the structures of the series of rare-earth double phosphate compounds: K3RE(PO4)2 with RE = Lu, Er, Ho, Dy, Gd, Nd, Ce, plus Y and Sc - as well as the compounds: A3Lu(PO4)2, with A = Rb, and Cs. The double phosphate K3Lu(PO4)2 was reported and structurally refined previously. This material had a hexagonal unit cell at room temperature with the Lu ion six-fold coordinated with oxygen atoms of the surrounding phosphate groups. Additionally two lower-temperature phases were observed for K3Lu(PO4)2. The first phase transition to a monoclinic P21/m phase occurred at ~230 K, and the Lu ion retained its six-fold coordination. The second K3Lu(PO4)2 phase transition occurred at ~130 K. The P21/m space group symmetry was retained, however, one of the phosphate groups rotated to increase the oxygen coordination number of Lu from six to seven. This structure then became isostructural with the room-temperature form of the compound K3Yb(PO4)2 reported here that also exhibits an additional high-temperature phase which occurs at T = 120 °C with a transformation to hexagonal P-3 space group symmetry and a Yb-ion coordination number reduction from seven to six. This latter result was confirmed using EXAFS. The single-crystal growth methods structural systematics, and thermal expansion properties of the present series of alkali rare-earth double phosphates, as determined by X-ray and neutron diffraction methods, are treated here.
Book Synopsis Crystal Structures of a Series of Rare Earth Phosphates by : Rose C. L. Mooney
Download or read book Crystal Structures of a Series of Rare Earth Phosphates written by Rose C. L. Mooney and published by . This book was released on 1948 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook on the Physics and Chemistry of Rare Earths by : Karl Albert Gschneidner
Download or read book Handbook on the Physics and Chemistry of Rare Earths written by Karl Albert Gschneidner and published by North-Holland. This book was released on 1996 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers various physical aspects of a wide range of rare-earth materials. Magnetic phenomena dominate the contents of the first four chapters which deal with thin films and layered structures, and intermetallic and nonmetallic compounds. The remaining two chapters deal with coherent emission and electronic structure calculations of lanthanide molecules.The first chapter covers the state-of-the-art of the synthesis and properties of thin films of the rare-earth metals and layered superstructures of two rare-earth metals. The following chapter is a review of rare-earth-transition metal nanoscale multilayers and describes the recent advances in our understanding of magnetic structure, interfacial magnetism, and origin of perpendicular magnetic anisotropy of lanthanide-transition-metal nanoscale multilayers. The next chapter deals with one of the important series of rare-earth intermetallic compounds, those which possess the ThNm 12 -type structure. The authors of the following chapter review the specific magnetic and magnetoelastic properties of certain crystals, which are determined by the localized electronic magnetic moments of the lanthanide ions in the crystal lattice and their interactions with each other and surrounding ions. The chapter on coherent emission differs from other reviews on the subject in that it concentrates on the broader issues. Here the emphasis is on superradiance, superfluorescence, amplification of spontaneous emission by other stimulated emision than the laser effect and coherent spontaneous emission. The final chapter describes the progress that has been made in electronic structure calculations of lanthanide-containing molecules, especially in the last 10 years.
Book Synopsis Progress in the Science and Technology of the Rare Earths by : Leroy Eyring
Download or read book Progress in the Science and Technology of the Rare Earths written by Leroy Eyring and published by Elsevier. This book was released on 2013-09-17 with total page 541 pages. Available in PDF, EPUB and Kindle. Book excerpt: Progress in the Science and Technology of the Rare Earths, Volume 1 is a 16-chapter text that brings together significant advances in understanding the scientific and technological aspects of rare earths. The first chapters deal with the geochemical properties, mass extraction, separation, fractionation, and solution chemistry of rare earths (RE). The next chapter related the U.S.S.R. efforts in delineating the chemistry of RE and in the discovery of other groups of substances for separation of RE mixtures. These topics are followed by discussions on phase equilibrium properties of RE and other oxides in mixed systems; the crystal chemistry of RE derivatives; physical and structural properties of alloys and intermetallic compounds; and the thermodynamic and magnetic properties of RE chalcogenides. The final chapter discusses the technical, industrial, and commercial applications of RE, with emphasis on their metallurgical potential. This book is of value to inorganic and organic chemists and researchers in the allied fields.
Book Synopsis Handbook on the Physics and Chemistry of Rare Earths by : K.A. Gschneidner
Download or read book Handbook on the Physics and Chemistry of Rare Earths written by K.A. Gschneidner and published by Elsevier. This book was released on 2003-06-19 with total page 688 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of the Handbook illustrates the rich variety of topics covered by rare earth science. Three chapters are devoted to the description of solid state compounds: skutterudites (Chapter 211), rare earth -antimony systems (Chapter 212), and rare earth-manganese perovskites (Chapter 214). Two other reviews deal with solid state properties: one contribution includes information on existing thermodynamic data of lanthanide trihalides (Chapter 213) while the other one describes optical properties of rare earth compounds under pressure (Chapter 217). Finally, two chapters focus on solution chemistry. The state of the art in unraveling solution structure of lanthanide-containing coordination compounds by paramagnetic nuclear magnetic resonance is outlined in Chapter 215. The potential of time-resolved, laser-induced emission spectroscopy for the analysis of lanthanide and actinide solutions is presented and critically discussed in Chapter 216.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2004 with total page 882 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Handbook on the Physics and Chemistry of Rare Earths by : Vitalij K. Pecharsky
Download or read book Handbook on the Physics and Chemistry of Rare Earths written by Vitalij K. Pecharsky and published by Elsevier. This book was released on 2020-11-11 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook on the Physics and Chemistry of Rare Earths: Including Actinides, Volume 58, the latest release in this continuous series that covers all aspects of rare earth science, including chemistry, life sciences, materials science and physics, presents interesting chapters on Forensic applications of rare earth materials, and Rare earths, the seventeen-position nob. - 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, along with critical reviews - Provides contributions from highly experienced, invited experts
Download or read book Bibliography written by Pierre Villars and published by Walter de Gruyter. This book was released on 2012-12-21 with total page 1827 pages. Available in PDF, EPUB and Kindle. Book excerpt: By browsing about 10 000 000 scientific articles of over 200 major journals mainly in a 'cover to cover approach' some 200 000 publications were selected. The extracted data is part of the following fundamental material research fields: crystal structures (S), phase diagrams (also called constitution) (C) and the comprehensive field of intrinsic physical properties (P). This work has been done systematically starting with the literature going back to 1900. The above mentioned research field codes (S, C, P) as well as the chemical systems investigated in each publication were included in the present work. The aim of the Inorganic Substances Bibliography is to provide researchers with a comprehensive compilation of all up to now published scientific publications on inorganic systems in only three handy volumes.
Book Synopsis Handbook on the Physics and Chemistry of Rare Earths by : Karl Albert Gschneidner
Download or read book Handbook on the Physics and Chemistry of Rare Earths written by Karl Albert Gschneidner and published by North-Holland. This book was released on 1996 with total page 824 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume covers various physical aspects of a wide range of rare-earth materials. Magnetic phenomena dominate the contents of the first four chapters which deal with thin films and layered structures, and intermetallic and nonmetallic compounds. The remaining two chapters deal with coherent emission and electronic structure calculations of lanthanide molecules.The first chapter covers the state-of-the-art of the synthesis and properties of thin films of the rare-earth metals and layered superstructures of two rare-earth metals. The following chapter is a review of rare-earth-transition metal nanoscale multilayers and describes the recent advances in our understanding of magnetic structure, interfacial magnetism, and origin of perpendicular magnetic anisotropy of lanthanide-transition-metal nanoscale multilayers. The next chapter deals with one of the important series of rare-earth intermetallic compounds, those which possess the ThNm 12 -type structure. The authors of the following chapter review the specific magnetic and magnetoelastic properties of certain crystals, which are determined by the localized electronic magnetic moments of the lanthanide ions in the crystal lattice and their interactions with each other and surrounding ions. The chapter on coherent emission differs from other reviews on the subject in that it concentrates on the broader issues. Here the emphasis is on superradiance, superfluorescence, amplification of spontaneous emission by other stimulated emision than the laser effect and coherent spontaneous emission. The final chapter describes the progress that has been made in electronic structure calculations of lanthanide-containing molecules, especially in the last 10 years.
Book Synopsis Fractional Precipitation of Rare Earths with Phosphoric Acid by : M. K. Carron
Download or read book Fractional Precipitation of Rare Earths with Phosphoric Acid written by M. K. Carron and published by . This book was released on 1958 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Science and Technology of Rare Earth Materials by : E C Subbarao
Download or read book Science and Technology of Rare Earth Materials written by E C Subbarao and published by Elsevier. This book was released on 2012-12-02 with total page 454 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science and Technology of Rare Earth Materials reviews the important aspects of the science and technology of rare earth materials, covering the entire spectrum from occurrence to extraction and purification, phase relationships, electronic structure, and applications. This book is organized into five sections encompassing 19 chapters. The occurrence, extraction, and production of rare earths are discussed in the first section, followed by purification methods employed for rare earths, together with the role of impurities on their behavior. The phase relations among the rare earth alloys, including a particular reference to the technologically important rare earth-cobalt alloys, and phase relations among the rare earth oxides are considered in the second section. The succeeding two sections focus on studies of the electronic structure of rare earth materials, with emphasis on the use of nuclear magnetic resonance and Mössbauer spectroscopy. Theoretical conceptions are set forth as well as the effect of crystal fields and valence fluctuations on the properties of rare earth systems. The final section describes some of the extensive current uses of rare earth materials such as in the steel industry and in permanent magnets, as well as emerging applications in catalysis, hydrogen storage, ferroelectrics, and fast ion conductors. This book is a valuable resource for researchers and students interested in rare earths.
Book Synopsis Rare Earth Coordination Chemistry by : Chun-Hui Huang
Download or read book Rare Earth Coordination Chemistry written by Chun-Hui Huang and published by John Wiley & Sons. This book was released on 2011-09-23 with total page 602 pages. Available in PDF, EPUB and Kindle. Book excerpt: Edited by a highly regarded scientist and with contributions from sixteen international research groups, spanning Asia and North America, Rare Earth Coordination Chemistry: Fundamentals and Applications provides the first one-stop reference resource for important accomplishments in the area of rare earth. Consisting of two parts, Fundamentals and Applications, readers are armed with the systematic basic aspects of rare earth coordination chemistry and presented with the latest developments in the applications of rare earths. The systematic introduction of basic knowledge, application technology and the latest developments in the field, makes this ideal for readers across both introductory and specialist levels.
Book Synopsis The Chemistry of the Rare-earth Elements by : N. E. Topp
Download or read book The Chemistry of the Rare-earth Elements written by N. E. Topp and published by . This book was released on 1965 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Complexes of the Rare Earths by : Shyama P. Sinha
Download or read book Complexes of the Rare Earths written by Shyama P. Sinha and published by Elsevier. This book was released on 2013-10-22 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Complexes of the Rare Earths focuses on the properties, characteristics, and reactions of rare earth complexes. The book first offers information on the complexes of rare earths and coordination through nitrogen of the donors. Discussions focus on the factors influencing the formation of complexes, phenanthroline, phthalocyanine, pyridine, quinolone, and urotropine. The text then elaborates on coordination through oxygen of the donors, including acids, alcohols, adducts, aldehydes, and ketones. The publication takes a look at coordination through both oxygen and nitrogen of the donors; coordination through atoms other than nitrogen and oxygen; and spectral characteristics of rare earths and their complexes. Topics include crystal field splitting, intensification or hypersensitivity of absorption bands, electron transfer spectra and optical electronegativity, and nephelauxetic effect. The text further ponders on luminescence of rare earths in chelates and in different environments, laser and applicability of rare earths as laser materials, and rare earths and the actinides. The book is a dependable source material for readers interested in the complexes of rare earths.
Book Synopsis Structure and Properties of Intermetallic Ternary Rare Earth Compounds by : Frederick Casper
Download or read book Structure and Properties of Intermetallic Ternary Rare Earth Compounds written by Frederick Casper and published by . This book was released on 2008 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rare-Earth-Activated Phosphors by : Vikas Dubey
Download or read book Rare-Earth-Activated Phosphors written by Vikas Dubey and published by Elsevier. This book was released on 2022-06-29 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rare-Earth-Activated Phosphors: Chemistry and Applications outlines important fundamentals and properties and explores successful application that address key problems across the sciences. Sections introduce phosphors and luminescence, explore their properties, characteristics, synthesis and degradation and highlight key applications across telecommunications, lighting, electroluminescent devices, (bio-)analytical sensors, bio-imaging set-ups, drug delivery and sustainable energy devices. Drawing on the knowledge of an expert team of contributors, the book provides useful insight into successfully harnessing the properties of rare earth activated phosphors for a range of important applications.Rare-earth nano-phosphors offer an interesting array of characteristics, including sharp emission bands, exceptional optical damage thresholds, low toxicity, high selectivity and stability, and long luminescence lifetimes. Understanding these properties can help researchers effectively manipulate them for a range of important applications. - Provides a good introduction to the useful properties and characteristics of rare earth activated phosphors - Analyzes the use of rare earth activated phosphors for a broad variety of important applications, bridging the gap between theory and application - Encourages further discourse and development for improving the energy-efficiency of devices based on rare earth activated phosphors
