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Growth Structure And Lattice Dynamics Of Rare Earth Silicide Nanostructures
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Book Synopsis Growth, Structure and Lattice Dynamics of Rare Earth Silicide Nanostructures by : Anja Seiler
Download or read book Growth, Structure and Lattice Dynamics of Rare Earth Silicide Nanostructures written by Anja Seiler and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Zusammenfassung: In the present thesis the epitaxial growth, crystal structure, stoichiometry, thermal stability and lattice dynamics of self-organized EuSi2 and DySi2 films, nanoislands and nanowires are investigated. The rare earth silicide (RESi) nanostructures have attracted considerable interest due to their high conductivity, very low Schottky barrier heights, remarkable chemical stability, self-organization in high area density and defects-free nano-objects with tunable size and shape, and the direct integration into the Si technology. The extensive research is driven by the continuous downscaling of the CMOS electronics that require new approaches in the devices architecture and circuits interconnects. Although RESi nanostructures attracted a lot of interest already several years ago and a lot of research has been done in this field, the lattice dynamics of these materials are still unknown. Recent developments at third generation synchrotron radiation sources have brought their performance to a stage where phonon spectroscopy of nanostructures and thin layers became feasible using nuclear inelastic X-ray scattering. This novel experimental technique is based on the process of phonon-assisted nuclear resonant absorption/emission of X-rays from the nuclei of Mössbauer-active isotopes. The method provides direct access to the phonon density of states (DOS) of the investigated element. Together with the ab inito calculations it was possible to get a comprehensive understanding of the lattice dynamics.EuSi2 films and nanoislands and DySi2 films, nanoislands and nanowires have been grown on the vicinal Si(001) surface by molecular beam epitaxy. While DySi2 was grown following known growth procedures, the growth conditions for EuSi2 had to be established first. EuSi2 was grown at two different growth conditions to study the influence of crystal structure and morphology upon different growth temperatures. The structure has been characterized by in situ and ex situ diffraction techniques revealing the tetragonal I41/amd crystal structure for both films and nanoislands at both growth temperatures, while the surface morphology changes significantly depending on the growth temperature. The thermal stability study performed by in situ high temperature GISAXS experiments demonstrated that EuSi2 nanoislands break down upon annealing at 1050 °C due to silicide decomposition followed by desorption of Eu atoms from the Si(001) surface. In contrast, DySi2 nanoislands increase their sizes upon annealing at 1050°C due to Ostwald ripening. The DySi2 nanowires are shrinking drastically because they only stabilize in a narrow temperature range. For the first time the lattice dynamics of EuSi2 and DySi2 was studied applying in situ nuclear inelastic scattering and ab initio theory. The phonon DOS was obtained and the related thermodynamic and elastic properties were calculated. A significant change of the phonon density of states upon the transition from bulk-like films to nanoislands and nanowires has been observed. With decreasing the sizes of the nanostructures properties like vibrational amplitude, vibrational entropy and the lattice specific heat are drastically increased, while the mean force constant is decreased. All values received from the experiments are in very good agreement with the values from the ab inito calculations for the EuSi2 system, while the calculations for the DySi2 system are still in progress
Book Synopsis Growth, Structure and Lattice Dynamics of Iron Silicide Nanostructures by : Jochen Kalt
Download or read book Growth, Structure and Lattice Dynamics of Iron Silicide Nanostructures written by Jochen Kalt and published by . This book was released on 2021* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Rare-earth Silicide Nanostructure Epitaxial Growth and Crystallography by : Gangfeng Ye
Download or read book Rare-earth Silicide Nanostructure Epitaxial Growth and Crystallography written by Gangfeng Ye and published by . This book was released on 2006 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Effect of Cooling on the Growth of Rare Earth Silicides on Silicon and the Growth of Overlayers on 2D Ho Silicide Studied Using MEIS and STM by : Michael Brian Reakes
Download or read book The Effect of Cooling on the Growth of Rare Earth Silicides on Silicon and the Growth of Overlayers on 2D Ho Silicide Studied Using MEIS and STM written by Michael Brian Reakes and published by . This book was released on 2010 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis In Situ, Real-time Characterization of Silicide Nanostructure Coarsening Dynamics by Photo-electron Emission Microscopy by : Matthew Casimir Zeman
Download or read book In Situ, Real-time Characterization of Silicide Nanostructure Coarsening Dynamics by Photo-electron Emission Microscopy written by Matthew Casimir Zeman and published by . This book was released on 2007 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt: We show that the wires are metastable structures which decay in favor of the larger rectangular islands at high temperatures. Additionally, the rectangular shape and faceted morphology of the RE silicide nanostructures strongly influences their coarsening dynamics.
Download or read book Chemical Abstracts written by and published by . This book was released on 2002 with total page 2540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Binary Rare Earth Oxides by : G. Adachi
Download or read book Binary Rare Earth Oxides written by G. Adachi and published by Springer Science & Business Media. This book was released on 2004-09 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt: Binary Rare Earth Oxides is the first book in the field of rare earth oxides that provides coverage from the basic science through to recent advances. This book introduces the unique characteristics of the binary rare earth oxides with their chemistry, physics and applications. It provides a comprehensive review of all the characteristics of rare earth oxides, essential for scientists and engineers involved with rare earths, oxides, inorganic materials, ceramics, and structures. The binary rare earth oxides bring us a variety of interesting characteristics. Understanding their fundamental mechanisms builds a bridge between solid-state chemistry and materials science. The book begins with a brief introduction to binary rare earth oxides, their physical and chemical stabilities, polymorphism, crystal structures and phase transformation and the association with current applications. The book goes on to present the band structure of the oxides using several quantum chemical calculations, which belong to a newly developed area in the binary rare earth oxides. Central to this chapter are the characterizations of electrical, magnetic and optical properties, as well as details of single crystal growth and particle preparation methods that have progressed in recent years. Later chapters concentrate on thermo-chemical properties and trace determination techniques. The final chapter contains a variety of useful applications in various fields such as phosphors, glass abrasives, automotive catalysts, fuel cells, solid electrolytes, sunscreens, iron steels, and biological materials. This book is an invaluable resource for materials scientists and solid-state physicists and chemists with an interest in rare earth oxides, as well as advanced students and graduates who require an approach to familiarize them with this field. This book provides guidance through a comprehensive review of all the characteristics of binary rare earth oxides.
Book Synopsis Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards by :
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2006 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Mössbauer Spectroscopy by : Virender K. Sharma
Download or read book Mössbauer Spectroscopy written by Virender K. Sharma and published by John Wiley & Sons. This book was released on 2013-08-13 with total page 1018 pages. Available in PDF, EPUB and Kindle. Book excerpt: Providing a modern update of the field, Mossbauer Spectroscopy focuses on applications across a broad range of fields, including analysis of inorganic elements, nanoparticles, metalloenzymyes, biomolecules (including proteins), glass, coal, and iron. Ideal for a broad range of scientists, this one-stop reference presents advances gained in the field over past two decades, including a detailed theoretical description of Mossbauer spectroscopy, an extensive treatment of Mossbauer spectroscopy in applied areas, and challenges and future opportunities for the further development of this technique.
Book Synopsis Semiconducting Silicides by : Victor E. Borisenko
Download or read book Semiconducting Silicides written by Victor E. Borisenko and published by Springer Science & Business Media. This book was released on 2013-03-07 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive presentation and analysis of properties and methods of formation of semiconducting silicides. Fundamental electronic, optical and transport properties of the silicides collected from recent publications will help readers choose their application in new generations of solid-state devices. A comprehensive presentation of thermodynamic and kinetic data is given in combination with their technical application, as is information on corresponding thin-film or bulk crystal formation techniques.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2005 with total page 780 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Atomic Layer Deposition for Semiconductors by : Cheol Seong Hwang
Download or read book Atomic Layer Deposition for Semiconductors written by Cheol Seong Hwang and published by Springer Science & Business Media. This book was released on 2013-10-18 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering thorough coverage of atomic layer deposition (ALD), this book moves from basic chemistry of ALD and modeling of processes to examine ALD in memory, logic devices and machines. Reviews history, operating principles and ALD processes for each device.
Book Synopsis Properties of Metal Silicides by : Karen Maex
Download or read book Properties of Metal Silicides written by Karen Maex and published by Institution of Electrical Engineers. This book was released on 1995 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of silicon alloyed with metals are presented here for silicides of both transition and rare earth metals.
Download or read book Physics Briefs written by and published by . This book was released on 1994 with total page 934 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Thermoelectric Materials and Devices by : Lidong Chen
Download or read book Thermoelectric Materials and Devices written by Lidong Chen and published by Elsevier. This book was released on 2020-09-25 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thermoelectric Materials and Devices summarizes the latest research achievements over the past 20 years of thermoelectric material and devices, most notably including new theory and strategies of thermoelectric materials design and the new technology of device integration. The book's author has provided a bridge between the knowledge of basic physical/chemical principles and the fabrication technology of thermoelectric materials and devices, providing readers with research and development strategies for high performance thermoelectric materials and devices. It will be a vital resource for graduate students, researchers and technologists working in the field of energy conversion and the development of thermoelectric devices. Discusses the new theory and methods of thermoelectric materials design Combines scientific principles, along with synthesis and fabrication technologies in thermoelectric materials Presents the design optimization and interface technology for thermoelectric devices Introduces thermoelectric polymers and organic-inorganic thermoelectric composites
Book Synopsis Physics, Chemistry, and Application of Nanostructures by : Sergey V. Gaponenko
Download or read book Physics, Chemistry, and Application of Nanostructures written by Sergey V. Gaponenko and published by World Scientific. This book was released on 2003 with total page 597 pages. Available in PDF, EPUB and Kindle. Book excerpt: PhD students, academics, researchers and industrialists in nanotechnology.
Book Synopsis Nanostructures And Nanomaterials: Synthesis, Properties, And Applications (2nd Edition) by : Guozhong Cao
Download or read book Nanostructures And Nanomaterials: Synthesis, Properties, And Applications (2nd Edition) written by Guozhong Cao and published by World Scientific Publishing Company. This book was released on 2011-01-03 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the 2nd edition of the original “Nanostructures and Nanomaterials” written by Guozhong Cao and published by Imperial College Press in 2004.This important book focuses not only on the synthesis and fabrication of nanostructures and nanomaterials, but also includes properties and applications of nanostructures and nanomaterials, particularly inorganic nanomaterials. It provides balanced and comprehensive coverage of the fundamentals and processing techniques with regard to synthesis, characterization, properties, and applications of nanostructures and nanomaterials. Both chemical processing and lithographic techniques are presented in a systematic and coherent manner for the synthesis and fabrication of 0-D, 1-D, and 2-D nanostructures, as well as special nanomaterials such as carbon nanotubes and ordered mesoporous oxides. The book will serve as a general introduction to nanomaterials and nanotechnology for teaching and self-study purposes.
