Electronic Phase Separation in Magnetic and Superconducting Materials

Electronic Phase Separation in Magnetic and Superconducting Materials PDF Author: Maxim Yu. Kagan
Publisher: Springer Nature
ISBN: 3031554671
Category :
Languages : en
Pages : 385

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Electronic Phase Separation in Magnetic and Superconducting Materials

Electronic Phase Separation in Magnetic and Superconducting Materials PDF Author: Maxim Yu. Kagan
Publisher: Springer Nature
ISBN: 3031554671
Category :
Languages : en
Pages : 385

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Electronic Phase Separation in Magnetic and Superconducting Materials

Electronic Phase Separation in Magnetic and Superconducting Materials PDF Author: M. Yu Kagan
Publisher:
ISBN: 9783031554698
Category :
Languages : en
Pages : 0

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High-Tc Copper Oxide Superconductors and Related Novel Materials

High-Tc Copper Oxide Superconductors and Related Novel Materials PDF Author: Annette Bussmann-Holder
Publisher: Springer
ISBN: 3319526758
Category : Technology & Engineering
Languages : en
Pages : 324

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Book Description
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.

Physics of Manganites

Physics of Manganites PDF Author: T.A. Kaplan
Publisher: Springer Science & Business Media
ISBN: 0306461323
Category : Science
Languages : en
Pages : 299

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Book Description
This series of books, which is published at the rate of about one per year, addresses fundamental problems in materials science. The contents cover a broad range of topics from small clusters of atoms to engineering materials and involves chemistry, physics, materials science and engineering, with length scales ranging from Ångstroms up to millimeters. The emphasis is on basic science rather than on applications. Each book focuses on a single area of current interest and brings together leading experts to give an up to date discussion of their work and the work of others. Each article contains enough references that the interested reader can access the relevant literature. Thanks are given to the Center for Fundamental Materials Research at Michigan State University for supporting this series. M. F. Thorpe, Series Editor E mail: thorpe@pa. msu. edu V PREFACE This book records invited lectures given at the workshop on Physics of Manganites, held at Michigan State University, July 26 29, 1998. Doped manganites are an interesting class of compounds that show both metal insulator and ferromagnetic to paramagnetic transitions at the same temperature. This was discovered in the early 1950s by Jonker and van Santen and basic theoretical ideas were developed by Zener (1951), Anderson and Hasegawa (1955), and deGennes (1960) to explain these transitions and related interesting observations.

Phase Separation In Cuprate Superconductors - Proceedings Of The Workshop

Phase Separation In Cuprate Superconductors - Proceedings Of The Workshop PDF Author: Karl Alex Muller
Publisher: World Scientific
ISBN: 9814553514
Category :
Languages : en
Pages : 394

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Book Description
The main objective of this workshop was to review and discuss the electronic and chemical properties of layered cuprate superconductors. These are doped antiferromagnetic (AFM) insulators, and there is the possibility of a dynamic phase separation into metallic clusters and AFM areas. A clarification on the existence and the mechanism of such a phase separation is believed to be crucial for the understanding of high-Tc superconductivity in cuprates.On the one hand, theoretical and recent experimental indications in favor of this possibility were presented, on the other hand experimental papers expressing more skeptical views were also delivered. Related work on phase separations of chemical and structural origin was also included, followed by contributions on the question; “If phase separation is present, what is the pairing mechanism in the metallic clusters?”.

Phase Separation in Cuprate Superconductors

Phase Separation in Cuprate Superconductors PDF Author: Ernst Sigmund
Publisher: Springer Science & Business Media
ISBN: 364278805X
Category : Technology & Engineering
Languages : en
Pages : 417

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Book Description
Phase separation has become a fascinating subject in the discussion of cuprate superconductors. All these materials have layered structures containing CU02 planes as the most important building blocks. They are coupled only weakly so that the electronic properties show a nearly two-dimensional behaviour. Due to correlations the undoped compounds are insulators of the Mott Hubbard type exhibiting long-range antiferromagnetic order. Upon doping a rich scenario of physical phenomena appears: Even at low hole concentra tions the antiferromagnetic ordering temperature is reduced drastically and spin-glass behaviour as well as a hopping type conductivity can be observed. Further doping leads to metallic-like conductivity and below Tc to super conductivity. In this doping regime antiferromagnetic fluctuations are still observed. At very high charge carrier densities superconductivity is lost and the systems show pure metallic conduction without ,magnetic correlations. One of the most interesting phenomena in high-T c research is the interplay between magnetism and conductivity or superconductivity. Especially the behaviour of charge carriers in the antiferromagnetic background raises a number of open questions. Two scenarios become possible: the carriers tend to delocalize over the whole crystal forming a homogeneous state with band-like structure or they separate into hole-rich (conducting, superconducting) and hole-poor (insulating, antiferromagnetic) phases leading to an inhomogeneous structure.

Phase Transitions in Materials

Phase Transitions in Materials PDF Author: Brent Fultz
Publisher: Cambridge University Press
ISBN: 1139993380
Category : Science
Languages : en
Pages : 589

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Book Description
Offering a fresh viewpoint on phase changes and the thermodynamics of materials, this textbook covers the thermodynamics and kinetics of the most important phase transitions in materials science, spanning classical metallurgy through to nanoscience and quantum phase transitions. Clear, concise and complete explanations rigorously address transitions from the atomic scale up, providing the quantitative concepts, analytical tools and methods needed to understand modern research in materials science. Topics are grouped according to complexity, ensuring that students have a solid grounding in core topics before they begin to tackle more advanced material, and are accompanied by numerous end-of-chapter problems. With explanations firmly rooted in the context of modern advances in electronic structure and statistical mechanics, and developed from classroom teaching, this book is the ideal companion for graduate students and researchers in materials science, condensed matter physics, solid state science and physical chemistry.

Scientific and Technical Aerospace Reports

Scientific and Technical Aerospace Reports PDF Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704

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Physics, Uspekhi

Physics, Uspekhi PDF Author:
Publisher:
ISBN:
Category : Physics
Languages : en
Pages : 764

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Charge Dynamics in 122 Iron-Based Superconductors

Charge Dynamics in 122 Iron-Based Superconductors PDF Author: Aliaksei Charnukha
Publisher: Springer Science & Business Media
ISBN: 3319011928
Category : Technology & Engineering
Languages : en
Pages : 139

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Book Description
This thesis combines highly accurate optical spectroscopy data on the recently discovered iron-based high-temperature superconductors with an incisive theoretical analysis. Three outstanding results are reported: (1) The superconductivity-induced modification of the far-infrared conductivity of an iron arsenide with minimal chemical disorder is quantitatively described by means of a strong-coupling theory for spin fluctuation mediated Cooper pairing. The formalism developed in this thesis also describes prior spectroscopic data on more disordered compounds. (2) The same materials exhibit a sharp superconductivity-induced anomaly for photon energies around 2.5 eV, two orders of magnitude larger than the superconducting energy gap. The author provides a qualitative interpretation of this unprecedented observation, which is based on the multiband nature of the superconducting state. (3) The thesis also develops a comprehensive description of a superconducting, yet optically transparent iron chalcogenide compound. The author shows that this highly unusual behavior can be explained as a result of the nanoscopic coexistence of insulating and superconducting phases, and he uses a combination of two complementary experimental methods - scanning near-field optical microscopy and low-energy muon spin rotation - to directly image the phase coexistence and quantitatively determine the phase composition. These data have important implications for the interpretation of data from other experimental probes.