Metal-insulator Transition and Superconductivity in Heavily Boron-doped Diamond and Related Materials PDF Download

Author: Philipp Achatz
Publisher:
ISBN: 9783941650084
Category :
Languages : en
Pages : 151

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Author: Fredrik Gustafsson
Publisher:
ISBN:
Category :
Languages : en
Pages : 40

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Author:
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ISBN:
Category :
Languages : en
Pages :

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Superconducting boron-doped diamond samples were synthesized with isotopes of 1°B, 11B, 13C and 12C. We claim the presence of a carbon isotope effect on the superconducting transition temperature, which supports the 'diamond-carbon'-related nature of superconductivity and the importance of the electron-phonon interaction as the mechanism of superconductivity in diamond. Isotope substitution permits us to relate almost all bands in the Raman spectra of heavily boron-doped diamond to the vibrations of carbon atoms. The 500 cm°1 Raman band shifts with either carbon or boron isotope substitution and may be associated with vibrations of paired or clustered boron. The absence of a superconducting transition (down to 1.6 K) in diamonds synthesized in the Co-C-B system at 1900 K correlates with the small boron concentration deduced from lattice parameters.

Author: Wolfgang Skorupa
Publisher: Springer Science & Business Media
ISBN: 3319031317
Category : Technology & Engineering
Languages : en
Pages : 330

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The thermal processing of materials ranges from few fem to seconds by Swift Heavy Ion Implantation to about one second using advanced Rapid Thermal Annealing. This book offers after an historical excursus selected contributions on fundamental and applied aspects of thermal processing of classical elemental semiconductors and other advanced materials including nanostructures with novel optoelectronic, magnetic, and superconducting properties. Special emphasis is given on the diffusion and segregation of impurity atoms during thermal treatment. A broad range of examples describes the solid phase and/or liquid phase processing of elemental and compound semiconductors, dielectric composites and organic materials.

Author: Daniele Mari
Publisher: Newnes
ISBN: 0080965288
Category : Technology & Engineering
Languages : en
Pages : 1809

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Book Description
Comprehensive Hard Materials, Three Volume Set deals with the production, uses and properties of the carbides, nitrides and borides of these metals and those of titanium, as well as tools of ceramics, the superhard boron nitrides and diamond and related compounds. Articles include the technologies of powder production (including their precursor materials), milling, granulation, cold and hot compaction, sintering, hot isostatic pressing, hot-pressing, injection moulding, as well as on the coating technologies for refractory metals, hard metals and hard materials. The characterization, testing, quality assurance and applications are also covered. Comprehensive Hard Materials provides meaningful insights on materials at the leading edge of technology. It aids continued research and development of these materials and as such it is a critical information resource to academics and industry professionals facing the technological challenges of the future. Hard materials operate at the leading edge of technology, and continued research and development of such materials is critical to meet the technological challenges of the future. Users of this work can improve their knowledge of basic principles and gain a better understanding of process/structure/property relationships. With the convergence of nanotechnology, coating techniques, and functionally graded materials to the cognitive science of cemented carbides, cermets, advanced ceramics, super-hard materials and composites, it is evident that the full potential of this class of materials is far from exhausted. This work unites these important areas of research and will provide useful insights to users through its extensive cross-referencing and thematic presentation. To link academic to industrial usage of hard materials and vice versa, this work deals with the production, uses and properties of the carbides, nitrides and borides of these metals and those of titanium, as well as tools of ceramics, the superhard boron nitrides and diamond and related compounds.

Author: Somnath Bhattacharyya
Publisher: CRC Press
ISBN: 1040013139
Category : Technology & Engineering
Languages : en
Pages : 327

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This book covers how the understanding, as well as controllability, of the quantum electronic properties of carbon structures can be improved through a combined study of structural geometry, electronic properties, and dynamics of resonating valence bonds. It elaborates varied properties such as growth mechanism, exotic transport properties, namely unusual geometry of microstructures mixed with electron distribution and spin properties in carbon. Transport mechanisms and new applications including hybrid quantum technology based on the superconducting diamond and diamond nitrogen-vacancy (NV) centers are discussed. Features: • Includes the theoretical and experimental aspects of carbon physics, various carbon nanostructures, and simulations. • Covers growth of carbon superstructures and various applications of their tunable electronic properties. • Discusses how nanocarbon systems can be used in emerging technologies, including spintronic and quantum computing. • Focuses on spin-related features and spin transport including the Kondo effect, spin-charge separation, spin-phonon coupling, anomalous Hall effect, and Luttinger liquid features. • Explores carbon superstructure growth and their tunable electronic properties. This book is aimed at students, researchers in physics, chemistry, engineering, materials science, electronics, and quantum technology.

Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 1040

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Author: Yoshihiro Kubozono
Publisher: Springer
ISBN: 981133417X
Category : Technology & Engineering
Languages : en
Pages : 337

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This book includes the fundamental science and applications of carbon-based materials, in particular fused polycyclic hydrocarbon, fullerene, diamond, carbides, graphite and graphene etc. During the past decade, these carbon-based materials have attracted much interest from many scientists and engineers because of their exciting physical properties and potential application toward electronic and energy devices. In this book, the fundamental theory referring to these materials, their syntheses and characterizations, the physical properties (physics), and the applications are fully described, which will contribute to an advancement of not only basic science in this research field but also technology using these materials. The book's targets are researchers and engineers in the field and graduate school students who specialize in physics, chemistry, and materials science. Thus, this book addresses the physics and chemistry of the principal materials in the twenty-first century.

Author: Oliver A. Chang
Publisher: Nova Publishers
ISBN: 9781600216947
Category : Science
Languages : en
Pages : 220

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This book presents state-of-the art research on superconductivity which is the ability of certain materials to conduct electrical current with no resistance and extremely low losses. High temperature superconductors, such as La2-xSrxCuOx (Tc=40K) and YBa2Cu3O7-x (Tc=90K), were discovered in 1987 and have been actively studied since. In spite of an intense, world-wide, research effort during this time, a complete understanding of the copper oxide (cuprate) materials is still lacking. Many fundamental questions are unanswered, particularly the mechanism by which high-Tc superconductivity occurs. More broadly, the cuprates are in a class of solids with strong electron-electron interactions. An understanding of such "strongly correlated" solids is perhaps the major unsolved problem of condensed matter physics with over ten thousand researchers working on this topic.

Author: Philippe Bergonzo
Publisher:
ISBN:
Category : Diamond thin films
Languages : en
Pages : 312

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