Transition Metal Oxides

Transition Metal Oxides PDF Author: Chintamani Nagesa Ramachandra Rao
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 360

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Book Description

Transition Metal Oxides

Transition Metal Oxides PDF Author: Chintamani Nagesa Ramachandra Rao
Publisher: VCH Publishers
ISBN:
Category : Science
Languages : en
Pages : 360

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Book Description


Nuclear Science Abstracts

Nuclear Science Abstracts PDF Author:
Publisher:
ISBN:
Category : Nuclear energy
Languages : en
Pages : 1756

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Book Description


Electronic Structure

Electronic Structure PDF Author: Richard M. Martin
Publisher: Cambridge University Press
ISBN: 1139643657
Category : Science
Languages : en
Pages : 658

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Book Description
The study of the electronic structure of materials is at a momentous stage, with the emergence of computational methods and theoretical approaches. Many properties of materials can now be determined directly from the fundamental equations for the electrons, providing insights into critical problems in physics, chemistry, and materials science. This book provides a unified exposition of the basic theory and methods of electronic structure, together with instructive examples of practical computational methods and real-world applications. Appropriate for both graduate students and practising scientists, this book describes the approach most widely used today, density functional theory, with emphasis upon understanding the ideas, practical methods and limitations. Many references are provided to original papers, pertinent reviews, and widely available books. Included in each chapter is a short list of the most relevant references and a set of exercises that reveal salient points and challenge the reader.

Stripes and Related Phenomena

Stripes and Related Phenomena PDF Author: Antonio Bianconi
Publisher: Springer Science & Business Media
ISBN: 0306471000
Category : Technology & Engineering
Languages : en
Pages : 557

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Book Description
The problem of superconductors has been a central issue in Solid State Physics since 1987. After the discovery of superconductivity (HTSC) in doped perovskites, it was realized that the HTSC appears in an unknown complex electronic phase of c- densed matter. In the early years, all theories of HTSC were focused on the physics of a homogeneous 2D metal with large electron–electron correlations or on a 2D polaron gas. Only after 1990, a novel paradigm started to grow where this 2D metallic phase is described as an inhomogeneous metal. This was the outcome of several experimental evidences of phase separation at low doping. Since 1992, a series of conferences on phase separation were organized to allow scientists to get together to discuss the phase separation and related issues. Following the discovery by the Rome group in 1992 that “the charges move freely mainly in one direction like the water running in the grooves in the corrugated iron foil,” a new scenario to understand superconductivity in the superconductors was open. Because the charges move like rivers, the physics of these materials shifts toward the physics of novel mesoscopic heterostructures and complex electronic solids. Therefore, understanding the striped phases in the perovskites not only provides an opportunity to understand the anomalous metallic state of cuprate superconductors, but also suggests a way to design new materials of technological importance. Indeed, the stripes are becoming a field of general scientific interest.

Trends In Chemistry Of Materials: Selected Research Papers Of C N R Rao

Trends In Chemistry Of Materials: Selected Research Papers Of C N R Rao PDF Author: C N R Rao
Publisher: World Scientific
ISBN: 9814470155
Category : Technology & Engineering
Languages : en
Pages : 635

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Book Description
In this collection, the author has compiled a set of his papers representing some of the highlights of materials chemistry. It features a section on oxidic materials, which includes high-temperature superconductivity, colossal magnetoresistance, electronic phase separation and multiferroics. The author has also included novel methods for making gallium nitride, boron nitride and such materials, by using precursors and the urea decomposition route. Moreover, there is a section dealing with open-framework and hybrid materials of which the latter has a great future since one can make use of the rigidity of inorganic structures and the functionality and flexibility of the organic residues to design materials with novel properties.

Frontiers of 4D- and 5D-transition Metal Oxides

Frontiers of 4D- and 5D-transition Metal Oxides PDF Author: Gang Cao
Publisher: World Scientific
ISBN: 9814374865
Category : Science
Languages : en
Pages : 328

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Book Description
This book is aimed at advanced undergraduates, graduate students and other researchers who possess an introductory background in materials physics and/or chemistry, and an interest in the physical and chemical properties of novel materials, especially transition metal oxides.New materials often exhibit novel phenomena of great fundamental and technological importance. Contributing authors review the structural, physical and chemical properties of notable 4d- and 5d-transition metal oxides discovered over the last 10 years. These materials exhibit extraordinary physical properties that differ significantly from those of the heavily studied 3d-transition metal oxides, mainly due to the relatively strong influence of the spin-orbit interaction and orbital order in 4d- and 5d materials. The immense growth in publications addressing the physical properties of these novel materials underlines the need to document recent advances and the current state of this field. This book includes overviews of the current experimental situation concerning these materials.

AACGE 2017 Program and Abstract

AACGE 2017 Program and Abstract PDF Author: AACG
Publisher: Coe Truman International, LLC
ISBN:
Category :
Languages : en
Pages : 706

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Book Description
AACGE 2017 Program and Abstract - American Conference on Crystal Growth (AACG)

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 592

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Book Description


Colossal Magnetoresistance, Charge Ordering And Related Properties Of Manganese Oxides

Colossal Magnetoresistance, Charge Ordering And Related Properties Of Manganese Oxides PDF Author: C N R Rao
Publisher: World Scientific
ISBN: 9814496871
Category : Science
Languages : en
Pages : 355

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Book Description
Metal oxides constitute one of the most amazing classes of materials with a wide range of properties. They exhibit a variety of phenomena, such as ferroelectricity, ferromagnetism and superconductivity.A new aspect of metal oxides — colossal magnetoresistance exhibited by certain manganese oxides, in particular rare earth manganates of perovskite structure — has received much attention in the last four years. Some of these oxides show 100% magnetoresistance and have much potential for technological applications. Previously this phenomenon was found only in layered and granular metallic materials. Studies of colossal magnetoresistance have led to the discovery of many other new phenomena and properties such as charge ordering and orbital ordering.In view of the importance of colossal magnetoresistance, charge ordering and related phenomena exhibited by oxides to the physics and chemistry of solid materials, it is necessary and timely to have a book dealing with these topics. This book begins with a review of the subject followed by contributions from a number of experts which cover the present status of the subject.

Localized to Itinerant Electronic Transition in Perovskite Oxides

Localized to Itinerant Electronic Transition in Perovskite Oxides PDF Author: John B. Goodenough
Publisher: Springer
ISBN: 3540455035
Category : Science
Languages : en
Pages : 249

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Book Description
Interest in the transition metal oxides with perovskite related structures goes back to the 1950s when the sodium tungsten bronzes NaxWO3 were shown to be metallic [1], the system Lal_xSr~MnO3 was found to contain a ferromagnetic conductive phase [2], and La0.sSr0.sCoO3 was reported to be a ferromagnetic metal, but with a peculiar magnetization of 1.5 #a/Co atom [3]. Stoichiometric oxide perovskites have the generic formula AMO3 in which the A site is at the center of a simple cubic array of M sites; the oxide ions form (180 ° 4)) M O M bridges to give an MO3 array of corner shared MO6/2 octahedra and the larger A cations have twelvefold oxygen coordination. Mismatch between the A O and M O equilibrium bond lengths introduces internal stresses. A compressive stress on the MO3 array is accommodated by a lowering of the M O M bond angle from 180 ° to (180 ° 4)); a tensile stress on the M O M bonds is accommodated by the formation of hexagonal polytypes [4].