Author: Tamara F. Isaacs-SmithPublisher:
ISBN:
Category :
Languages : en
Pages : 56
Book Description
Growth of Superconducting Thin Films of Yttrium Barium Copper Oxide by Co-evaporation and Layered Deposition
Author: Tamara F. Isaacs-SmithPublisher:
ISBN:
Category :
Languages : en
Pages : 56
Book Description
Part I : Growth and Properties of Reactively Coevaporated Superconducting Yttrium-barium-copper-oxide Thin Films. Part II : Amorphous Superconducting/normal-metal Multilayers in Novel Geometries
Author: Vladimir Cort MatijasevicPublisher:
ISBN:
Category :
Languages : en
Pages : 416
Book Description
High Temperature Superconductor Thin Films--growth Mechanisms-interfaces-multilayers
Author: H.-U. HabermeierPublisher: Elsevier Science & Technology
ISBN:
Category : Science
Languages : en
Pages : 404
Book Description
Hardbound. The four day EMRS Spring Meeting in Strasbourg, France (June 4 -7 1996) Symposium on High Temperature Superconductor Thin Films: Growth Mechanisms - Interfaces - Multilayers was held in conjunction with the Third Workshop in Europe. The benefit of including the Workshop into the Symposium was the advantage of bringing in an additional far larger and disciplinarily more diverse audience and through the organization of the workshop receiving invited and contributed lectures as well as posters which was supplemental to the main Symposium. The Symposium focused on the specific topics of growth interfaces and multilayers and highlighted the continuing need for there to be active interplay between chemists designing new precursor molecules and depositing thin films, and engineers applying HTS materials with deficiencies and limitations to commercially oriented devices.The majority of papers presented at the Symposium are included in these pro
YBCO Superconductor Research Progress
Author: Li-Chun LiángPublisher: Nova Publishers
ISBN: 9781604560831
Category : Science
Languages : en
Pages : 248
Book Description
Superconductivity 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, 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. High-Tc superconductors also have significant potential for applications in technologies ranging from electric power generation and transmission to digital electronics. This ability to carry large amounts of current can be applied to electric power devices such as motors and generators, and to electricity transmission in power lines. For example, superconductors can carry as much as 100 times the amount of electricity of ordinary copper or aluminium wires of the same size. This Publication presents new research on yttrium barium copper oxide superconductors, often abbreviated YBCO, which is a chemical compound with the formula YBa2Cu3O7. This material, a famous 'high-temperature superconductor', achieved prominence because it was the first material to superconduct above the boiling point of nitrogen. All materials developed before YBCO became superconducting only at temperatures near the boiling points of liquid helium or liquid hydrogen (Tb = 20.1 K). The significance of the discovery of YBCO is the breakthrough in the refrigerant used to cool the material to below the critical temperature.
Sputter Deposition of Yttrium-barium-copper-oxide Superconducting Thin Films
Author: Robert Glenn FlorencePublisher:
ISBN:
Category : Sputtering (Physics)
Languages : en
Pages : 210
Book Description
Thin Films and Josephson Junctions of Yttrium Barium Copper Oxide
Author: Peter Andrew RosenthalPublisher:
ISBN:
Category :
Languages : en
Pages : 430
Book Description
Deposition of Yttrium Barium Copper Oxide Superconducting Thin Films by RF Magnetron Sputtering
Author: Vijay Dattatraya ParkhePublisher:
ISBN:
Category :
Languages : en
Pages : 260
Book Description
Thin Films of Copper Oxide and Copper Grown by Atomic Layer Deposition for Applications in Metallization Systems of Microelectronic Devices
Author: Thomas WächtlerPublisher: Thomas Waechtler
ISBN: 3941003178
Category :
Languages : en
Pages : 247
Book Description
Comparative Characterization of Superconducting Thin Films Fabricated by Different Techniques
Author: Padma Prasuna S. VemulakondaPublisher:
ISBN:
Category : Superconductivity
Languages : en
Pages : 84
Book Description
The goal of this thesis is to compare the chemical and compositional profiles, grain structure and critical current densities of superconducting Yttrium Barium Copper Oxide(Y1Ba2Cu3O7-x or YBCO) layers grown by different competing techniques on a variety of substrates and buffer layers. The idea is to check if there can be variation of cationic ratios, impurities, possible diffusion of substrate/buffer layer atoms into the YBCO for different processing methods and microstructures. Pulsed Laser Deposition (PLD), Metal Organic Deposition (MOD) and Metal Organic Chemical Vapor Deposition (MOCVD) films on Ion Beam Assisted Deposited (IBAD)-textured buffer layers and, Rolling Assisted Biaxial textured substrate (RABiTS) combinations have been compared. X-ray Photoelectron Spectroscopy (XPS) has been used in conjunction with ion beam sputtering as well as gentle chemical etching to obtain composition and chemistry information at different depths into the film. Correlation with Secondary Ion Mass Spectroscopy (SIMS) has been obtained as needed. Top view as well as cross section Scanning Electron Microscope (SEM) was performed for microstructure analysis. Using the gentle chemical etching method, depth profiling of composition and microstructure of the films has been achieved. It is seen that variations in microstructure occur along the depth of the superconducting layer even when the composition is uniform. The density and the micro-structural uniformity vary significantly from one deposition technique to other. The durability and stability of these films, microstructure, depth profiling have been compared and will be presented. This thesis provides important information on variations of the YBCO films from one deposition technique to another.
Author: Stephen E. Russek