Contribution to the Study of the Electronic States of Rare Earth Oxide Thin Films by the XPS and the Raman Spectroscopy PDF Download
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Author: Karolina Galicka
Publisher:
ISBN:
Category :
Languages : en
Pages : 233
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Book Description
The thesis concerned the NdNiO3/NdGaO3 thin films with various thicknesses 150 nm, 73 nm and 17 nm. Samples have been obtained by RF - sputtering and post annealing deposition treatment at the 800°C and O2 250 bar, during 48h. The thesis had two mainly goals. First one, identify source responsible for different switching properties of the thin films NdNiO3/NdGaO3 (observed in DC measurements 150 nm abrupt while for 17 nm film vanishing metal - insulator transition). This goal has been achieved thanks XPS studies, i.e., analysis of the valence bands and core level of Ni2p, O1s and Nd3d spectra. The attempt to establish an effect of charge disproportion of nickel ion 2Ni3+ ® Ni3+d + Ni3-d and observed it in experimental phonon spectra across metal - insulator transition have been a second goal of the thesis. These studies have been performed thanks the Raman scattering studies and theoretical lattice dynamics calculation (LADY). This thesis contributed to the general understanding of the metal - insulator transition in RNiO3 perovskite. The XPS and Raman spectroscopy studies appeared as pertinent tools to investigate the properties of rare earth oxides thin films that are also promising for various applications.
Author: Karolina Galicka
Publisher:
ISBN:
Category :
Languages : en
Pages : 233
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Book Description
The thesis concerned the NdNiO3/NdGaO3 thin films with various thicknesses 150 nm, 73 nm and 17 nm. Samples have been obtained by RF - sputtering and post annealing deposition treatment at the 800°C and O2 250 bar, during 48h. The thesis had two mainly goals. First one, identify source responsible for different switching properties of the thin films NdNiO3/NdGaO3 (observed in DC measurements 150 nm abrupt while for 17 nm film vanishing metal - insulator transition). This goal has been achieved thanks XPS studies, i.e., analysis of the valence bands and core level of Ni2p, O1s and Nd3d spectra. The attempt to establish an effect of charge disproportion of nickel ion 2Ni3+ ® Ni3+d + Ni3-d and observed it in experimental phonon spectra across metal - insulator transition have been a second goal of the thesis. These studies have been performed thanks the Raman scattering studies and theoretical lattice dynamics calculation (LADY). This thesis contributed to the general understanding of the metal - insulator transition in RNiO3 perovskite. The XPS and Raman spectroscopy studies appeared as pertinent tools to investigate the properties of rare earth oxides thin films that are also promising for various applications.
Author: Karolina Galicka
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
Author: Marco Fanciulli
Publisher: Springer
ISBN: 9783642071461
Category : Science
Languages : en
Pages : 0
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Book Description
Thin rare earth (RE) oxide films are emerging materials for microelectronic, nanoelectronic, and spintronic applications. The state-of-the-art of thin film deposition techniques as well as the structural, physical, chemical, and electrical properties of thin RE oxide films and of their interface with semiconducting substrates are discussed. The aim is to identify proper methodologies for the development of RE oxides thin films and to evaluate their effectiveness as innovative materials in different applications.
Author: Satishchandra B. Ogale
Publisher: Springer Science & Business Media
ISBN: 9780387258027
Category : Technology & Engineering
Languages : en
Pages : 440
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Book Description
Oxides form a broad subject area of research and technology development which encompasses different disciplines such as materials science, solid state chemistry, physics etc. The aim of this book is to demonstrate the interplay of these fields and to provide an introduction to the techniques and methodologies involving film growth, characterization and device processing. The literature in this field is thus fairly scattered in different research journals covering one or the other aspect of the specific activity. This situation calls for a book that will consolidate this information and thus enable a beginner as well as an expert to get an overall perspective of the field, its foundations, and its projected progress.
Author: Gernot Friedbacher
Publisher: Wiley-VCH
ISBN: 9783527320479
Category : Technology & Engineering
Languages : en
Pages : 0
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Book Description
Surveying and comparing all techniques relevant for practical applications in surface and thin film analysis, this second edition of a bestseller is a vital guide to this hot topic in nano- and surface technology. This new book has been revised and updated and is divided into four parts - electron, ion, and photon detection, as well as scanning probe microscopy. New chapters have been added to cover such techniques as SNOM, FIM, atom probe (AP),and sum frequency generation (SFG). Appendices with a summary and comparison of techniques and a list of equipment suppliers make this book a rapid reference for materials scientists, analytical chemists, and those working in the biotechnological industry. From a Review of the First Edition (edited by Bubert and Jenett) "... a useful resource..." (Journal of the American Chemical Society)
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Author: Sebastian Bär
Publisher: Cuvillier Verlag
ISBN: 3865371493
Category :
Languages : en
Pages : 148
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Book Description
Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 2730
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Author: Shriram Ramanathan
Publisher: Springer Science & Business Media
ISBN: 1441906649
Category : Technology & Engineering
Languages : en
Pages : 344
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Book Description
Thin Film Metal-Oxides provides a representative account of the fundamental structure-property relations in oxide thin films. Functional properties of thin film oxides are discussed in the context of applications in emerging electronics and renewable energy technologies. Readers will find a detailed description of deposition and characterization of metal oxide thin films, theoretical treatment of select properties and their functional performance in solid state devices, from leading researchers. Scientists and engineers involved with oxide semiconductors, electronic materials and alternative energy will find Thin Film Metal-Oxides a useful reference.
Author: Dinesh K. Aswal
Publisher: Nova Publishers
ISBN: 9781600215148
Category : Science
Languages : en
Pages : 396
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Book Description
Gas sensor technology has advanced remarkably during past few decades and has become one of the indispensable technologies for modern society. Varieties of gas sensors are commercially available and, using innovative ideas, efforts are being made to develop gas sensors of next generation having very small size with very low power consumption. The ultimate model for this is probably given by sensory organs of our own body, which are implanted finely and work well with a very modest amount of energy. In order to achieve this goal, it is essential that various aspects of gas sensors are seriously considered. These include understanding of gas sensing mechanisms, development of new materials and methods to synthesise them into selective sensors, innovations in nanostructured materials, measurement methods, microfabrication of sensors, exploring intelligent sensing system, etc. This book examines these issues pertaining to chemiresistive gas sensors.
Author: Boris E. Burakov
Publisher: World Scientific
ISBN: 1848164181
Category : Science
Languages : en
Pages : 215
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Book Description
This book summarises approaches and current practices in actinide immobilisation using chemically-durable crystalline materials e.g. ceramics and monocrystals. Durable actinide-containing materials including crystalline ceramics and single crystals are attractive for various applications such as nuclear fuel to burn excess Pu, chemically inert sources of irradiation for use in unmanned space vehicles or producing electricity for microelectronic devices, and nuclear waste disposal. Long-lived -emitting actinides such as Pu, Np, Am and Cm are currently of serious concern has a result of increased worldwide growth in the nuclear industry. Actinide-bearing wastes have also accumulated in different countries as a result of nuclear weapons production. Excess weapon and civil Pu from commercial spent fuel is waiting for environmentally-safe immobilisation. As actinides are chemical elements with unique features, they could be beneficially used in different areas of human life including medicine although currently there is no appropriate balance between safe actinide disposal and use. Both use and disposal of actinides require their immobilisation in a durable host material. The choice of an optimal actinide immobilisation route is often a great challenge for specialists. There is a wealth of information about actinide properties in many publications although little is published to summarise the currently accepted approaches and practices on actinide immobilisation. This book intends to provide such information based on the authors' experience and studies in nuclear material management and actinide immobilisation.
