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Rudolf P. Huebener presents the field of superconductivity research in a clear and compact way. He vividly describes how this area has developed in many directions since the discovery of superconductivity more than 100 years ago. This concerns materials, experiments on the physical principles, theoretical understanding and technical applications. Among other things, the essential deals with the Meissner-Ochsenfeld effect, magnetic flux quantization, the Josephson effect, the BCS theory and high-temperature superconductivity. This Springer essential is a translation of the original German 1st edition essentials, Geschichte und Theorie der Supraleiter by Rudolf P. Huebener, published by Springer Fachmedien Wiesbaden GmbH, part of Springer Nature in 2017. The translation was done with the help of artificial intelligence (machine translation by the service DeepL.com). A subsequent human revision was done primarily in terms of content, so that the book will read stylistically differently from a conventional translation. Springer Nature works continuously to further the development of tools for the production of books and on the related technologies to support the authors. The content The discovery of superconductivity Magnetic penetration depth, coherence length and London theory Type II superconductivity and the Abrikosov-Vortex lattice Kuprate superconductors and iron pnictides Technical applications The target groups Students and lecturers of physics, engineering and electrical engineering Pupils and interested laypersons The Author Prof. em. Rudolf P. Huebener worked as a physicist at various research centres and institutes in Germany and the USA. He taught and researched at the University of Tübingen from 1974 until his retirement in 1999.

Space research --- Solid state physics --- Physics --- Electronics --- vaste stof --- materie (fysica) --- fysica --- ruimte (astronomie) --- halfgeleiders --- Superconductivity.

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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.

Thermal properties of solids --- Theoretical spectroscopy. Spectroscopic techniques --- supergeleiding --- spectroscopie --- Superconductivity. --- Superconductors. --- Superconductors --- Spectrum analysis. --- Quantum electrodynamics. --- Spectroscopy. --- Quantum Electrodynamics, Relativistic and Many-body Calculations. --- Chemistry.

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This book elucidates fascinating electronic phenomena of unusual Bi2-square net in layered R2O2Bi (R: rare earth) compounds using two approaches: the fabrication of epitaxial thin films and the synthesis of bulk polycrystalline powders. The Bi2-square net compounds are a promising platform to explore exotic physical properties originating from the interplay between a two-dimensional electronic state and strong spin–orbit coupling; however, there are few reports on Bi2-square net compounds due to the instability of unusual electronic configurations. The book presents the development of synthetic routes for R2O2Bi compounds, such as novel solid phase epitaxy techniques and chemical control of crystal structure, demonstrating the intrinsic physical properties of Bi2-square net for the first time. The most notable finding is the successful induction of two-dimensional superconductivity in Bi2-square net with the coexistence of rich electronic phases. The book also discusses the superconducting mechanisms and the effect of R cation substitution in detail and describes the mechanical properties of Bi2-square net. These findings overturn the results of previous studies of R2O2Bi. The book sheds light on hidden layered compounds, representing a significant advance in the field.

Optics. Quantum optics --- Thermal properties of solids --- Physicochemistry --- Inorganic chemistry --- supergeleiding --- anorganische chemie --- fysicochemie --- microwaves --- Chemistry, Inorganic. --- Superconductivity. --- Superconductors. --- Optical materials. --- Chemistry, Physical and theoretical. --- Inorganic Chemistry. --- Optical Materials. --- Physical Chemistry.

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This thesis describes in-depth studies of the remarkable electronic transport within the ultrahigh conductivity delafossite metals PtCoO_2 and PdCoO_2 using the tool of focused ion beam (FIB) microstucturing. Despite being first synthesised over 50 years ago, important questions remain regarding both the origin of the unusually high conductivity of these compounds and the consequences of their unique properties for unconventional electronic transport, such as that within the ballistic regime. The thesis explores both these areas. High-energy electron irradiation is used to examine the effects of deliberately introducing point defects into PdCoO_2 and PtCoO_2, demonstrating that the extremely low resistivity of these materials stems from an extreme purity as high as 1 defect in 120,000 atoms, rather than a novel scattering suppression mechanism. In addition, studies of the electronic transport in micron-scale squares of these metals show that their broadly hexagonal Fermi surfaces lead not only to long range ballistic behaviour but novel ballistic regime phenomena which cannot be observed in materials with a higher-symmetry Fermi surface.

Quantum mechanics. Quantumfield theory --- Statistical physics --- Thermal properties of solids --- Solid state physics --- Matter physics --- Metallurgy --- supergeleiding --- EMI (electromagnetic interference) --- materie (fysica) --- quantummechanica --- fysica --- metalen --- Condensed matter. --- Materials science --- Electronic structure. --- Quantum chemistry --- Metals. --- Superconductivity. --- Superconductors. --- Condensed Matter Physics. --- Electronic Structure Calculations. --- Metals and Alloys. --- Phase Transition and Critical Phenomena. --- Data processing. --- Computer programs. --- Copper alloys --- Nanostructured materials. --- Electric properties. --- Microstructure.