Angle Resolved Photoemission Spectroscopy Study Of Spin Fluctuations In The Cuprate Superconductors
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Angle Resolved Photoemission Spectroscopy Study Of Spin Fluctuations In The Cuprate Superconductors
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Author : Francisco Restrepo
language : en
Publisher: Springer Nature
Release Date : 2022-09-13
Angle Resolved Photoemission Spectroscopy Study Of Spin Fluctuations In The Cuprate Superconductors written by Francisco Restrepo and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-09-13 with Technology & Engineering categories.
This thesis makes significant advances towards an understanding of superconductivity in the cuprate family of unconventional, high-temperature superconductors. Even though the high-temperature superconductors were discovered over 35 years ago, there is not yet a general consensus on an acceptable theory of superconductivity in these materials. One of the early proposals suggested that collective magnetic excitations of the conduction electrons could lead them to form pairs, which in turn condense to form the superconducting state at a critical temperature Tc. Quantitative calculations of Tc using experimental data were, however, not available to verify the applicability of this magnetic mechanism. In this thesis, the author constructed an angle-resolved photoemission apparatus that could provide sufficiently accurate data of the electronic excitation spectra of samples in the normal state, data which was furthermore unusually devoid of any surface contamination. The author also applied the Bethe-Salpeter method to his uncommonly pristine and precise normal state data, and was able to predict the approximate superconducting transition temperatures of different samples. This rare combination of experiment with sophisticated theoretical calculations leads to the conclusion that antiferromagnetic correlations are a viable candidate for the pairing interaction in the cuprate superconductors.
High Temperature Superconductors
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Author : X G Qiu
language : en
Publisher: Elsevier
Release Date : 2011-03-28
High Temperature Superconductors written by X G Qiu and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-03-28 with Technology & Engineering categories.
High temperature superconductors have received a great deal of attention in recent years, due to their potential in device and power applications. This book summarises the materials science and physics of all the most important high temperature superconductors as well as discussing material growth, properties and applications.Part one covers fundamental characteristics of high temperature superconductors and high TC films such as deposition technologies, growth, transport properties and optical conductivity. Part two is concerned with growth techniques and properties of high temperature superconductors, including YBCO, BSCCO and HTSC high TC films, and electron-doped cuprates. Finally, part three describes the various applications of high temperature superconductors, from Josephson junctons and dc-superconductive quantum inference devices (dc-SQUIDs) to microwave filters.With its distinguished editor and international team of contributors, this book is an invaluable resource for those researching high temperature superconductors, in industry and academia. In light of the many recent advances in high temperature superconductors, it will benefit physicists, materials scientists and engineers working in this field, as well as in areas of industrial application, such as electronic devices and power transmission. - Summarises the materials science and physics of all the most important high temperature superconductors - Discusses material growth, properties and applications - Outlines fundamental characteristics of high temperature superconductors and high TC films
Spin Spirals And Charge Textures In Transition Metal Oxide Heterostructures
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Author : Alex Frano
language : en
Publisher: Springer
Release Date : 2014-05-28
Spin Spirals And Charge Textures In Transition Metal Oxide Heterostructures written by Alex Frano and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-05-28 with Technology & Engineering categories.
This thesis presents the results of resonant and non-resonant x-ray scattering experiments demonstrating the control of collective ordering phenomena in epitaxial nickel-oxide and copper-oxide based superlattices. Three outstanding results are reported: (1) LaNiO3-LaAlO3 superlattices with fewer than three consecutive NiO2 layers exhibit a novel spiral spin density wave, whereas superlattices with thicker nickel-oxide layer stacks remain paramagnetic. The magnetic transition is thus determined by the dimensionality of the electron system. The polarization plane of the spin density wave can be tuned by epitaxial strain and spatial confinement of the conduction electrons. (2) Further experiments on the same system revealed an unusual structural phase transition controlled by the overall thickness of the superlattices. The transition between uniform and twin-domain states is confined to the nickelate layers and leaves the aluminate layers unaffected. (3) Superlattices based on the high-temperature superconductor YBa2Cu3O7 exhibit an incommensurate charge density wave order that is stabilized by heterointerfaces. These results suggest that interfaces can serve as a powerful tool to manipulate the interplay between spin order, charge order, and superconductivity in cuprates and other transition metal oxides.
Uniaxial Pressure Study Of Charge Density Waves In A High T Cuprate Superconductor
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Author : Hun-ho Kim
language : en
Publisher: Springer Nature
Release Date : 2022-05-07
Uniaxial Pressure Study Of Charge Density Waves In A High T Cuprate Superconductor written by Hun-ho Kim and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-05-07 with Science categories.
This book presents comprehensive studies of charge density waves (CDW) in a high-Tc cuprate superconductor using x-ray scattering techniques under uniaxial pressure. Specifically, the work addresses inelastic x-ray scattering studies under uniaxial pressure performed on the underdoped cuprate YBa2Cu3O6.67(p=0.12, Tc=65K) with incoming photon energy in the resonant (E=931.3 eV, Cu-L3 edge) and non-resonant conditions (E=17.794 keV). This is a completely new approach to the investigation of charge density waves. It revealed new features of charge density waves in cuprates, whose properties had previously been inaccessible..
Physical Properties Of High Temperature Superconductors
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Author : Rainer Wesche
language : en
Publisher: John Wiley & Sons
Release Date : 2015-05-13
Physical Properties Of High Temperature Superconductors written by Rainer Wesche and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-13 with Technology & Engineering categories.
A much-needed update on complex high-temperaturesuperconductors, focusing on materials aspects; this timely bookcoincides with a recent major break-through of the discovery ofiron-based superconductors. It provides an overview of materials aspects of high-temperaturesuperconductors, combining introductory aspects, description of newphysics, material aspects, and a description of the materialproperties This title is suitable for researchers inmaterials science, physics and engineering. Also for techniciansinterested in the applications of superconductors, e.g. asbiomagnets
Very High Resolution Photoelectron Spectroscopy
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Author : Stephan Hüfner
language : en
Publisher: Springer Science & Business Media
Release Date : 2007-02-09
Very High Resolution Photoelectron Spectroscopy written by Stephan Hüfner 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 2007-02-09 with Science categories.
Photoemission spectroscopy is one of the most extensively used methods to study the electronic structure of atoms, molecules, and solids and their surfaces. This volume introduces and surveys the field at highest energy and momentum resolutions allowing for a new range of applications, in particular for studies of high temperature superconductors.
100 Years Of Superconductivity
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Author : Horst Rogalla
language : en
Publisher: Taylor & Francis
Release Date : 2011-11-11
100 Years Of Superconductivity written by Horst Rogalla and has been published by Taylor & Francis this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011-11-11 with Science categories.
Even a hundred years after its discovery, superconductivity continues to bring us new surprises, from superconducting magnets used in MRI to quantum detectors in electronics. 100 Years of Superconductivity presents a comprehensive collection of topics on nearly all the subdisciplines of superconductivity. Tracing the historical developments in supe
Energy Research Abstracts
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Author :
language : en
Publisher:
Release Date : 1990
Energy Research 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 1990 with Power resources categories.
New Challenges In Superconductivity Experimental Advances And Emerging Theories
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Author : J. Ashkenazi
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-01-24
New Challenges In Superconductivity Experimental Advances And Emerging Theories written by J. Ashkenazi 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 2006-01-24 with Science categories.
This volume contains the proceedings of the 2004 University of Miami Workshop on Unconventional Superconductivity. The workshop was the fourth in a series of successful meetings on High-T Superconductivity and C related topics, which took place at the James L. Knight Physics Building on the University of Miami campus in Coral Gables, Florida, in January 1991, 1995, 1999, and 2004. The workshop consisted of two consecutive events: 1. NATO Advanced Research Workshop (ARW) on New Challenges in Superconductivity: Experimental Advances and Emerging Theories, held on January 11-14, 2004; 2. Symposium on Emerging Mechanisms for High Temperature Superconductivity (SEMHTS), held on January 15-16, 2004. It is hard to write a balanced preface to a volume like this one, yet at least we try to offer the reader a taste of what was happening in this workshop. There were close to a hundred scientists from around the world, albeit fewer Russians than we had originally hoped for. Nevertheless, the workshop was very lively and we trust that this is demonstrated in this volume. The workshop included high-quality presentations on state of the art works, yet a key issue, discussed by many, was how homogeneous the cuprates are. STM data, as well as other reports, showed that the cuprate superconductors (SC’s) studied were inhomogeneous, especially in the underdoped regime; while experiments, like ARPES and magnetoresistance have established the existence of a Fermi Surface (FS), at least above some doping level, in the cuprates.
Polarons In Advanced Materials
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Author : Alexandre S. Alexandrov
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-01-11
Polarons In Advanced Materials written by Alexandre S. Alexandrov 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 2008-01-11 with Science categories.
This book first introduces a single polaron and describes recent achievements in analytical and numerical studies of polaron properties in different e-ph models. It then describes multi-polaron physics as well as many key physical properties of high-temperature superconductors, colossal magnetoresistance oxides, conducting polymers and molecular nanowires, which were understood with polarons and bipolarons.