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Etude Des Composes De Structure Type K2nif4 Entre Oxydes De Terres Rares Et Oxydes De Metaux De Transition
Download Etude Des Composes De Structure Type K2nif4 Entre Oxydes De Terres Rares Et Oxydes De Metaux De Transition full books in PDF, epub, and Kindle. Read online Etude Des Composes De Structure Type K2nif4 Entre Oxydes De Terres Rares Et Oxydes De Metaux De Transition ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Electrical Properties of Solids by : T. F. Connolly
Download or read book Electrical Properties of Solids written by T. F. Connolly and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since 1963 the Research Materials Information Center has been answering inquiries on the availability, preparation, and properties of ultrapure inorganic research specimens. It has been possible to do this with reasonable efficiency by searching an automated coded microfilm collection of the report and open literature and of data sheets and question naires provided by commercial and research producers of pure materials. With the growth of the collection to over 70,000 documents and the increase in the demand for more general background information, it has been necessary to compile bibliographies on an increasing variety of subjects. These have been used as indexes to the microfilmed documents for more efficient searching, and in the past distributed in response to individual requests. However, their size and number no longer permit so casual and uneconomic a method of distribution. The "ORNL Solid State Physics Literature Guides" is a practical alternative. Organization The subject organization of the bibliography is given by the Table of Contents. Each section is preceded by a collection of reviews, bibliographies, and "general" papers (i.e., those dealing with methods or equipment rather than single materials, or with such a wide variety of materials that no subsection was appropriate). Coverage is generally from 1960 to mid-1970. Emphasis is on inorganic materials.
Book Synopsis Contribution à l'étude des oxydes mixtes dérivés du ferrite bicalcique by : Milica Conkic
Download or read book Contribution à l'étude des oxydes mixtes dérivés du ferrite bicalcique written by Milica Conkic and published by . This book was released on 1975 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis COMPOSES APERIODIQUES 1D A XMX 3 DE TYPE PEROVSKITE HEXAGONALE ET 2D K 1 by : Olivier Gourdon
Download or read book COMPOSES APERIODIQUES 1D A XMX 3 DE TYPE PEROVSKITE HEXAGONALE ET 2D K 1 written by Olivier Gourdon and published by . This book was released on 2000 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: La forme et l'origine de modulations aperiodiques de positions et/ou d'occupation dans deux series de composes, les oxydes et les sulfures de type perovskite hexagonale et la phase k 1 / 3ba 2 / 3agte 2, sont analysees respectivement par des etudes cristallographiques avec un formalisme a n-dimensions et des calculs de structures electroniques ab initio. La premiere partie de ce memoire est consacree a l'etude de nouvelles phases de type perovskite hexagonale. Dans un premier temps, un modele d'affinement a ete elabore a partir de deux phases oxydes, sr 1 , 2 8 7 2nio 3 et sr 1 4 / 1 1coo 3. Ce modele permet de mettre en evidence une caracteristique des structures, essentielle pour l'interpretation des proprietes physiques dans le cas du nickel et du cobalt, a savoir une delocalisation du metal au sein des sites trigonaux prismatiques. Dans un deuxieme temps, le modele etabli est profondement modifie pour permettre la determination des structures cristallines de differents sulfures analogues. Un nouveau site et de nouvelles sequences dans les chaines mx 3 sont mis en evidence dans ces phases. Des calculs de structure de bandes ab initio montrent que la repartition des charges n'est pas la meme dans les deux familles, avec des do ii et iv dans les oxydes et iv et iii dans les sulfures. Des substitutions partielles du metal dans le cas des sulfures corroborent cette analyse. La seconde partie du memoire concerne l'etude du compose module incommensurable k 1 / 3ba 2 / 3agte 2. Les etudes cristallographiques revelent la presence de deux entites, te 3 en v et te 5 en w, realisees lors de la distorsion du reseau d'atomes de tellure. Cette distorsion resulte d'un deficit de charge sur le reseau du tellure, comme le montre les calculs
Book Synopsis Composés apériodiques 1D AxMX3 de type perovskite hexagonale et 2D K1/3Ba2/3AgTe2 by : Olivier Gourdon
Download or read book Composés apériodiques 1D AxMX3 de type perovskite hexagonale et 2D K1/3Ba2/3AgTe2 written by Olivier Gourdon and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
