Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Pairing Pseudogap And Fermi Arcs In Cuprates
Download Pairing Pseudogap And Fermi Arcs In Cuprates full books in PDF, epub, and Kindle. Read online Pairing Pseudogap And Fermi Arcs In Cuprates ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Pairing, Pseudogap and Fermi Arcs in Cuprates by :
Download or read book Pairing, Pseudogap and Fermi Arcs in Cuprates written by and published by . This book was released on 2014 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: We use Angle Resolved Photoemission Spectroscopy (ARPES) to study the relationship between the pseudogap, pairing and Fermi arcs in cuprates. High quality data measured over a wide range of dopings reveals a consistent picture of Fermiology and pairing in these materials. The pseudogap is due to an ordered state that competes with superconductivity rather than preformed pairs. Pairing does occur below Tpair ~ 150K and significantly above Tc, but well below T* and the doping dependence of this temperature scale is distinct from that of the pseudogap. The d-wave gap is present below Tpair, and its interplay with strong scattering creates "artificial" Fermi arcs for Tc
Book Synopsis Controlling Collective Electronic States in Cuprates and Nickelates by : Martin Bluschke
Download or read book Controlling Collective Electronic States in Cuprates and Nickelates written by Martin Bluschke and published by Springer Nature. This book was released on 2020-07-27 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis chemical and epitaxial degrees of freedom are used to manipulate charge and spin ordering phenomena in two families of transition metal oxides, while taking advantage of state-of-the-art resonant x-ray scattering (RXS) methods to characterize their microscopic origin in a comprehensive manner. First, the relationship of charge density wave order to both magnetism and the "pseudogap" phenomenon is systematically examined as a function of charge-carrier doping and isovalent chemical substitution in single crystals of a copper oxide high-temperature superconductor. Then, in copper oxide thin films, an unusual three-dimensionally long-range-ordered charge density wave state is discovered, which persists to much higher temperatures than charge-ordered states in other high-temperature superconductors. By combining crystallographic and spectroscopic measurements, the origin of this phenomenon is traced to the epitaxial relationship with the underlying substrate. This discovery opens new perspectives for the investigation of charge order and its influence on the electronic properties of the cuprates. In a separate set of RXS experiments on superlattices with alternating nickel and dysprosium oxides, several temperature- and magnetic-field-induced magnetic phase transitions are discovered. These observations are explained in a model based on transfer of magnetic order and magneto-crystalline anisotropy between the Ni and Dy subsystems, thus establishing a novel model system for the interplay between transition-metal and rare-earth magnetism.
Book Synopsis Advances In Theoretical And Experimental Research Of High Temperature Cuprate Superconductivity by : Rushan Han
Download or read book Advances In Theoretical And Experimental Research Of High Temperature Cuprate Superconductivity written by Rushan Han and published by World Scientific. This book was released on 2020-05-22 with total page 512 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is indexed in Chemical Abstracts ServiceResearchers working at the frontier of high-Tc Superconductors have reviewed the development in this area in the past 20 years. Both experimental and theoretical aspects have been covered. New directions and possible theoretical models were suggested. The contributors of this book are from China Center of Advanced Science and Technology (CCAST); Institute of Physics Chinese Academy of Sciences (CAS); National Lab for Superconductivity, Institute of Physics, CAS; School of Physics, Peking University and Center of Advanced Study Tsinghua University.This volume will be a useful guide to those who are working in the field.
Download or read book Pairing in a Dry Fermi Sea written by and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In the traditional Bardeen-Cooper-Schrieffer theory of superconductivity, the amplitude for the propagation of a pair of electrons with momentum k and -k has a log singularity as the temperature decreases. This so-called Cooper instability arises from the presence of an electron Fermi sea. It means that an attractive interaction, no matter how weak, will eventually lead to a pairing instability. However, in the pseudogap regime of the cuprate superconductors, where parts of the Fermi surface are destroyed, this log singularity is suppressed, raising the question of how pairing occurs in the absence of a Fermi sea. In this paper, we report Hubbard model numerical results and the analysis of angular-resolved photoemission experiments on a cuprate superconductor. Finally, in contrast to the traditional theory, we find that in the pseudogap regime the pairing instability arises from an increase in the strength of the spin-fluctuation pairing interaction as the temperature decreases rather than the Cooper log instability.
Book Synopsis Visualising the Charge and Cooper-Pair Density Waves in Cuprates by : Stephen Edkins
Download or read book Visualising the Charge and Cooper-Pair Density Waves in Cuprates written by Stephen Edkins and published by Springer. This book was released on 2017-08-31 with total page 193 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Superconductors by : Alexander Gabovich
Download or read book Superconductors written by Alexander Gabovich and published by BoD – Books on Demand. This book was released on 2012-10-17 with total page 455 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book includes 17 chapters written by noted scientists and young researchers and dealing with various aspects of superconductivity, both theoretical and experimental. The authors tried to demonstrate their original vision and give an insight into the examined problems. A balance between theory and experiment was preserved at least from the formal viewpoint (9 and 8, respectively). The readers should be warned that many of the problems studied here are far from being solved and are treated on the basis of competing viewpoints. The reason is that such is the state of the art! Science of superconductivity develops rapidly and new unexpected discoveries are expected in the nearest future.
Book Synopsis Endless Quests: Theory, Experiments And Applications Of Frontiers Of Superconductivity by : Jiangdi Fan
Download or read book Endless Quests: Theory, Experiments And Applications Of Frontiers Of Superconductivity written by Jiangdi Fan and published by World Scientific. This book was released on 2019-01-15 with total page 325 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book is devoted to advancing and developing the frontiers of superconductivity; in particular, the theory of the Diagrammatic Iteration Approach (DIA), described in Chapter 1, is unique in the community of superconductivity.The application of DIA to electron correlation effects has allowed the tough issue of strongly-coupled electron systems to be solved, which is important for high-temperature superconductivity (HTS). DIA, when applied to a layered two-dimensional system, gives rise to marvelous outcomes that can explain all the anomalies in the normal state of HTS, and leads to a transition temperature that is dependent on quantities including the dielectric constant, electron band mass and spacing between layers. This then serves as a quantifiable guide on how to make ideal superconductors. Moreover, in such a scenario, the mechanisms of low- and high-temperature superconductivity can be unified on the basis of repulsive Coulomb interactions between electrons.The book contains rich first-hand information on experiments at the frontiers of superconductivity, as well as on relevant applications of such cutting-edge developments. For instance, Jiasu Wang, co-author of the chapter discussing the HTS Maglev train, is the person who completed the world's first HTS Maglev train. Thus, the draw of this book lies not only in its ability to marry theory, experiment and application, but also in its inclusion of research from prestigious experts of the field.
Book Synopsis Angle-Resolved Photoemission Spectroscopy Study of Spin Fluctuations in the Cuprate Superconductors by : Francisco Restrepo
Download or read book Angle-Resolved Photoemission Spectroscopy Study of Spin Fluctuations in the Cuprate Superconductors written by Francisco Restrepo and published by Springer Nature. This book was released on 2022-09-13 with total page 113 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Journal of the Physical Society of Japan by :
Download or read book Journal of the Physical Society of Japan written by and published by . This book was released on 2008 with total page 576 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Utilization of Renormalized Mean-Field Theory upon Novel Quantum Materials by : Wei-Lin Tu
Download or read book Utilization of Renormalized Mean-Field Theory upon Novel Quantum Materials written by Wei-Lin Tu and published by Springer. This book was released on 2019-05-08 with total page 91 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers a new approach to the long-standing problem of high-Tc copper-oxide superconductors. It has been demonstrated that starting from a strongly correlated Hamiltonian, even within the mean-field regime, the “competing orders” revealed by experiments can be achieved using numerical calculations. In the introduction, readers will find a brief review of the high-Tc problem and the unique challenges it poses, as well as a comparatively simple numerical approach, the renormalized mean-field theory (RMFT), which provides rich results detailed in the following chapters. With an additional phase picked up by the original Hamiltonian, some behaviors of interactive fermions under an external magnetic field, which have since been experimentally observed using cold atom techniques, are also highlighted.
Book Synopsis Spectroscopic Study on Charge-Spin-Orbital Coupled Phenomena in Mott-Transition Oxides by : Masaki Uchida
Download or read book Spectroscopic Study on Charge-Spin-Orbital Coupled Phenomena in Mott-Transition Oxides written by Masaki Uchida and published by Springer Science & Business Media. This book was released on 2013-02-02 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis the author presents the results of extensive spectroscopy experiments beyond the bounds of each transition element to clarify the origins of characteristic spectral features and charge dynamics in charge-spin-orbital coupled phenomena in Mott-transition oxides. Several counterpart 3d transition-metal oxides were adopted as model systems suitable for examining the mechanisms involved, and their electronic structures were systematically investigated using three main spectroscopy methods. Comparative studies on the charge dynamics and Mott transition features of transition-metal oxides were performed: Charge dynamics and thermoelectricity in a typical Mott transition system La1−xSrxVO3, charge dynamics in a doped valence-bond solid system (Ti1−xVx)2O3 and in layered nickelates R2-xSrxNiO4 with charge-ordering instability are investigated thoroughly. The results obtained successfully provide a number of novel insights into the emergent phenomena near the Mott transition.
Book Synopsis Superconducting State by : Vladimir Kresin
Download or read book Superconducting State written by Vladimir Kresin and published by Oxford University Press. This book was released on 2021-05-24 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with a detailed theoretical treatment of the key mechanisms of superconductivity, up to the current state of the art (phonons, magnons, plasmons). In addition, the book describes the properties of key superconducting compounds that are of most interest for science and its applications today. For many years there has been a search for new materials with higher values of the main parameters, such as the critical temperature and the critical current. At present, the possibility to observe superconductivity at room temperature has become perfectly realistic. The book is especially concerned with high Tc systems, such as the high Tc oxides, hydrides with record values of the critical temperature under high pressure, nanoclusters, etc. A number of interesting novel superconducting systems have been discovered recently. Among them: topological materials, interface systems, intercalated graphene. The book contains rigorous derivations, based on statistical mechanics and many-body theory. The book is also providing qualitative explanations of the main concepts and results, which makes it accessible and interesting for a broader readership.
Book Synopsis High-Tc Copper Oxide Superconductors and Related Novel Materials by : Annette Bussmann-Holder
Download or read book High-Tc Copper Oxide Superconductors and Related Novel Materials written by Annette Bussmann-Holder and published by Springer. This book was released on 2017-03-24 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authored by many of the world's leading experts on high-Tc superconductivity, this volume presents a panorama of ongoing research in the field, as well as insights into related multifunctional materials. The contributions cover many different and complementary aspects of the physics and materials challenges, with an emphasis on superconducting materials that have emerged since the discovery of the cuprate superconductors, for example pnictides, MgB2, H2S and other hydrides. Special attention is also paid to interface superconductivity. In addition to superconductors, the volume also addresses materials related to polar and multifunctional ground states, another class of materials that owes its discovery to Prof. Müller's ground-breaking research on SrTiO3.
Book Synopsis Spin Spirals and Charge Textures in Transition-Metal-Oxide Heterostructures by : Alex Frano
Download or read book Spin Spirals and Charge Textures in Transition-Metal-Oxide Heterostructures written by Alex Frano and published by Springer. This book was released on 2014-05-28 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Rethinking Scientific Change and Theory Comparison: by : Léna Soler
Download or read book Rethinking Scientific Change and Theory Comparison: written by Léna Soler and published by Springer Science & Business Media. This book was released on 2008-05-29 with total page 379 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a collection of essays devoted to the analysis of scientific change and stability. It explores the balance and tension that exist between commensurability and continuity on the one hand and incommensurability and discontinuity on the other. The book constitutes fully revised versions of papers that were originally presented at an international colloquium held at the University of Nancy, France, in June 2004.
Book Synopsis The Multifaceted Skyrmion by : Mannque Rho
Download or read book The Multifaceted Skyrmion written by Mannque Rho and published by World Scientific. This book was released on 2010-01-18 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a sequel to the World Scientific volume edited by Gerald E Brown in 1994 entitled “Selected Papers, with Commentary, of Tony Hilton Royle Skyrme”. There has been a series of impressive developments in the application of the skyrmion structure to wide-ranging physical phenomena. The first volume was mainly focused on the rediscovery of the skyrmion in 1983 in the context of Quantum Chromodynamics (QCD) and on its striking role in nuclear physics. Since 1994, skyrmions have been found to play an even greater role not only in various aspects of particle physics and astrophysics but also most remarkably in condensed matter physics. It is also proving to be fruitful in dense hadronic matter relevant to compact stars, a system difficult to access by other approaches. The recent discovery of holographic baryons in gravity/gauge duality which correspond to skyrmions in the infinite tower of vector mesons provides a valuable confrontation of string theory with nature, particularly in the regime of strong coupling that QCD proper has difficulty in accessing. This volume consists of contributions from the active researchers who have made important progress in these three areas of theoretical physics — condensed matter physics, nuclear and particle physics, and string theory.
Book Synopsis D-wave Superconductivity by : Tao Xiang
Download or read book D-wave Superconductivity written by Tao Xiang and published by Cambridge University Press. This book was released on 2022-06-09 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume provides a comprehensive introduction to the theory of d-wave superconductivity, focused on d-wave pairing symmetry and its physical consequences in the superconducting state. It discusses the basic concepts and methodologies related to high-temperature superconductivity and compares experimental phenomena with theoretical predictions. After a brief introduction to the basic theory of superconductivity and several models for high-temperature superconductivity, this book presents detailed derivations and explanations for various single-particle and collective properties of d-wave superconductors that can be monitored experimentally, including thermodynamics, angular-resolved photo-emission, single-particle and Josephson tunnelling, impurity scattering, magnetic and superfluid responses, transport and optical properties and mixed states. Various universal behaviours of d-wave superconductors are highlighted. Aimed primarily at graduate students and research scientists in condensed matter and materials physics, this text enables readers to understand systematically the physical properties of high-temperature superconductors.
