Pseudogap And Precursor Superconductivity Study Of Zn Doped Ybco
DOWNLOAD
Download Pseudogap And Precursor Superconductivity Study Of Zn Doped Ybco PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Pseudogap And Precursor Superconductivity Study Of Zn Doped Ybco book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Pseudogap And Precursor Superconductivity Study Of Zn Doped Ybco
DOWNLOAD
Author : Ece Uykur
language : en
Publisher: Springer
Release Date : 2015-02-26
Pseudogap And Precursor Superconductivity Study Of Zn Doped Ybco written by Ece Uykur and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-02-26 with Technology & Engineering categories.
In this thesis, the pseudogap and the precursor superconducting state, which are of great importance in clarifying the superconductivity mechanism in high-temperature cuprate superconductors, are investigated with a c-axis optical study in YBa2(Cu1-xZnx)3Oy. Testing was performed over a wide energy range with smaller temperature intervals for several Zn-substituted samples, as well as for several carrier-doping levels. A spectral weight (SW) analysis, in which the pseudogap behavior can be separated from the superconducting condensate with the SW transfer to the high-energy region, revealed that the pseudogap is not the precursor of the superconductivity (carriers moving to the high-energy region with pseudogap opening never contribute to the superconducting condensation). Moreover, the high-energy transfer continues even below Tc for the Zn-substituted samples (in which we weaken the superconductivity), which gives evidence to the coexistence of the pseudogap and the superconducting gap below Tc. On the other hand, the analysis of optical conductivity revealed that a precursor state to superconductivity can be defined at temperatures much higher than Tc. The superconducting carrier density (ns) was calculated for each temperature (above and below Tc) and the results confirmed the existence of ns at temperatures above Tc. The observed real superconducting condensate (ns) above Tc puts a serious constraint on the theory for high- Tc superconductivity. A theory based on an inhomogeneous superconducting state, in which a microscopically phase-separated state in a doped Mott insulator can be observed, is the most plausible candidate. This theory can explain the existence of ns and the observed temperature range for the precursor superconducting state. The results obtained show that the pseudogap coexists with superconductivity below Tc and is not the precursor of superconductivity. On the other hand, it is also possible to define a precursor superconducting state that is different than the pseudogap. The temperature range and the observed superconducting condensate in this state can be explained with the help of the inhomogeneous superconducting state.
Journal Of The Physical Society Of Japan
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2017
Journal Of The Physical Society Of Japan written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with Physics categories.
Low Temperature Physics
DOWNLOAD
Author : Yasumasa Takano
language : en
Publisher:
Release Date : 2006
Low Temperature Physics written by Yasumasa Takano and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Low temperatures categories.
Low Temperature Physics
DOWNLOAD
Author : Y. Takano
language : en
Publisher: American Institute of Physics
Release Date : 2006-11-22
Low Temperature Physics written by Y. Takano and has been published by American Institute of Physics this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006-11-22 with Science categories.
This book represents recent cutting-edge developments in low temperature physics, reported at one of the largest international conferences in physics. The subjects covered are superconductivity, magnetism, quantum gases, quantum liquids and solids, electronic properties of solids, low-temperature experimental techniques, cryogenics, and applications.
Handbook Of Superconductivity
DOWNLOAD
Author : David A. Cardwell
language : en
Publisher: CRC Press
Release Date : 2022-07-05
Handbook Of Superconductivity written by David A. Cardwell and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-07-05 with Science categories.
This is the first of three volumes of the extensively revised and updated second edition of the Handbook of Superconductivity. The past twenty years have seen rapid progress in superconducting materials, which exhibit one of the most remarkable physical states of matter ever to be discovered. Superconductivity brings quantum mechanics to the scale of the everyday world where a single, coherent quantum state may extend over a distance of metres, or even kilometres, depending on the size of a coil or length of superconducting wire. Viable applications of superconductors rely fundamentally on an understanding of this intriguing phenomena and the availability of a range of materials with bespoke properties to meet practical needs. This first volume covers the fundamentals of superconductivity and the various classes of superconducting materials, which sets the context and background for Volumes 2 and 3. Key Features: Covers the depth and breadth of the field Includes contributions from leading academics and industry professionals across the world Provides hands-on guidance to the manufacturing and processing technologies A comprehensive reference, this handbook is suitable for both graduate students and practitioners in experimental physics, materials science and multiple engineering disciplines, including electronic and electrical, chemical, mechanical, metallurgy and others.
Theory Of Unconventional Superconductors
DOWNLOAD
Author : Dirk Manske
language : en
Publisher: Springer Science & Business Media
Release Date : 2004-06-25
Theory Of Unconventional Superconductors written by Dirk Manske and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-06-25 with Science categories.
This book presents a theory for unconventional superconductivity driven by spin excitations. Using the Hubbard Hamiltonian and a self-consistent treatment of the spin excitations, the interplay between magnetism and superconductivity in various unconventional superconductors is discussed. In particular, the monograph applies this theory for Cooper-pairing due to the exchange of spin fluctuations to the case of singlet pairing in hole- and electron-doped high-Tc superconductors, and to triplet pairing in Sr2RuO4. Within the framework of a generalized Eliashberg-like treatment, calculations of both many normal and superconducting properties as well as elementary excitations are performed. The results are related to the phase diagrams of the materials which reflect the interaction between magnetism and superconductivity.
Chemical Abstracts
DOWNLOAD
Author :
language : en
Publisher:
Release Date : 2002
Chemical Abstracts written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Chemistry categories.
Inhomogeneous Superconductivity
DOWNLOAD
Author : Lucian Covaci
language : en
Publisher:
Release Date : 2007
Inhomogeneous Superconductivity written by Lucian Covaci and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007 with Inhomogeneous materials categories.
Indium Seals
DOWNLOAD
Author : R. O. Adams
language : en
Publisher:
Release Date : 1964
Indium Seals written by R. O. Adams and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1964 with Indium categories.
The feasibility of using indium seals for large vacuum bell jars has been investigated. It is shown that such seals can be made; however, use of this type seal for repetitive operations is not recommended.
Visualising The Charge And Cooper Pair Density Waves In Cuprates
DOWNLOAD
Author : Stephen Edkins
language : en
Publisher: Springer
Release Date : 2017-08-31
Visualising The Charge And Cooper Pair Density Waves In Cuprates written by Stephen Edkins and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-31 with Technology & Engineering categories.
This thesis reports on the use of scanning tunnelling microscopy to elucidate the atomic-scale electronic structure of a charge density wave, revealing that it has a d-symmetry form factor, hitherto unobserved in nature. It then details the development of an entirely new class of scanned probe: the scanning Josephson tunnelling microscope. This scans the Josephson junction formed between a cuprate superconducting microscope tip and the surface of a cuprate sample, thereby imaging the superfluid density of the sample with nanometer resolution. This novel method is used to establish the existence of a spatially modulated superconducting condensate, something postulated theoretically over half a century ago but never previously observed.