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Physics Of Spin Orbit Coupled Oxides
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Book Synopsis Physics of Spin-Orbit-Coupled Oxides by : Gang Cao
Download or read book Physics of Spin-Orbit-Coupled Oxides written by Gang Cao and published by Oxford University Press. This book was released on 2021 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is aimed at graduate students, post docs and senior researchers with preliminary expertise in materials physics or chemistry, and with an interest in the physical and chemical properties of 4d- and 5d transition metal oxides, especially ruthenates and iridates. The 4d- and 5d-transition metal oxides are among the most current and interesting quantum materials. This book reviews recent experimental and theoretical evidence that the physical and structural properties of these materials are decisively influenced by strong spin-orbit interactions that compete with comparable Coulomb, magnetic exchange and crystalline electric field interactions. This competition often leads to unusual ground states and magnetic frustration that are unique to this class of materials. Novel coupling between the orbital/lattice and spin degrees of freedom, which seriously challenge current theoretical models and are not addressed by traditional textbooks, are of particular interest, This book also reviews a few techniques for single-crystal growth that are most suitable for the 4d- and 5d-transition metal oxides. The discussion is intended to help fill an existing void in the literature describing relevant synthesis techniques for 4d- and 5d-materials, which is a daunting experimental challenge.
Book Synopsis Physics of Spin-Orbit-Coupled Oxides by : Gang Gao
Download or read book Physics of Spin-Orbit-Coupled Oxides written by Gang Gao and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Physics of Spin-Orbit-Coupled Oxides by : Gang Cao
Download or read book Physics of Spin-Orbit-Coupled Oxides written by Gang Cao and published by Oxford University Press. This book was released on 2021-06-14 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is aimed at graduate students, post docs and senior researchers with preliminary expertise in materials physics or chemistry, and with an interest in the physical and chemical properties of 4d- and 5d transition metal oxides, especially ruthenates and iridates. The 4d- and 5d-transition metal oxides are among the most current and interesting quantum materials. This book reviews recent experimental and theoretical evidence that the physical and structural properties of these materials are decisively influenced by strong spin-orbit interactions that compete with comparable Coulomb, magnetic exchange and crystalline electric field interactions. This competition often leads to unusual ground states and magnetic frustration that are unique to this class of materials. Novel coupling between the orbital/lattice and spin degrees of freedom, which seriously challenge current theoretical models and are not addressed by traditional textbooks, are of particular interest, This book also reviews a few techniques for single-crystal growth that are most suitable for the 4d- and 5d-transition metal oxides. The discussion is intended to help fill an existing void in the literature describing relevant synthesis techniques for 4d- and 5d-materials, which is a daunting experimental challenge.
Book Synopsis Spectroscopic Study on Charge-Spin-Orbital Coupled Phenomena in Mott-Transition Oxides by : Springer
Download or read book Spectroscopic Study on Charge-Spin-Orbital Coupled Phenomena in Mott-Transition Oxides written by Springer and published by . This book was released on 2013-02-02 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spin-orbit Coupling Effects in Two-Dimensional Electron and Hole Systems by : Roland Winkler
Download or read book Spin-orbit Coupling Effects in Two-Dimensional Electron and Hole Systems written by Roland Winkler and published by Springer. This book was released on 2003-10-06 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first part provides a general introduction to the electronic structure of quasi-two-dimensional systems with a particular focus on group-theoretical methods. The main part of the monograph is devoted to spin-orbit coupling phenomena at zero and nonzero magnetic fields. Throughout the book, the main focus is on a thorough discussion of the physical ideas and a detailed interpretation of the results. Accurate numerical calculations are complemented by simple and transparent analytical models that capture the important physics.
Book Synopsis Interplay of Strong Correlation, Spin-orbit Coupling and Electron-phonon Interactions in Quasi-2D Iridium Oxides by : Ekaterina Pärschke
Download or read book Interplay of Strong Correlation, Spin-orbit Coupling and Electron-phonon Interactions in Quasi-2D Iridium Oxides written by Ekaterina Pärschke and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spin-orbital Physics in Transition Metal Oxides by :
Download or read book Spin-orbital Physics in Transition Metal Oxides written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Many body aspect of interplay between spin degrees of freedom and orbital degrees of freedom in transition metal oxides is studied. In this thesis work, I study three major research projects. First, I study SU(2) Heisenberg spin models and discuss some pathologies associated with the Schwinger boson mean field theory for the SU(N) Heisenberg models in which orbital degrees of freedom can be included as an internal symmetry. Second, considering the key parameters realized in the system, I derive an effective superexchange spin-orbital Hamiltonian for the $YVO3̲$ system and use mean field theory to explain the observed high temperature orbital transition and spin transitions. Third, I study the newly proposed spin-2 bond model for insulating $V2̲O3̲$ system. I use Bogolyubov-Peirels variational approach to study the effects of quantum fluctuation and short range spin correlations on magnetic phase transitions. Then, I explin observed large entropy jump and the other experimental observations in the system. Interestingly, with the model of $V2̲O3̲$, I find a novel mechanism for spin ordering and disordering transitions due dimensional crossover and dimensional reduction induced by orbital ordering.
Book Synopsis Spin Orbital Coupling in 5d Transition Metal Oxides and Topological Flat Bands by : Wenjuan Zhang
Download or read book Spin Orbital Coupling in 5d Transition Metal Oxides and Topological Flat Bands written by Wenjuan Zhang and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spin orbit coupling (SOC) is a relativistic phenomenon that couples the spin angular momentum of an electron to its orbital angular momentum. This leads to remarkable consequences for the motion of electrons in a crystalline solid that are not only magnified but also qualitatively different when electrons interact strongly with each other. As one goes down the periodic table, the strength of SOC usually increases due to the larger positive charge of the nucleus that produces an enhanced magnetic field felt by electrons. On the other hand, electron–electron correlations, characterized by on–site Coulomb repulsion U, decrease due to the larger extent of the orbitals. Hence a perfect playground to study the competition between correlations and SOC are the transition metal compounds with partially filled 4d and 5d orbitals. My research focuses how this interplay between strong correlations and SOC gives rise to unconventional magnetic structures with unusual properties, where both the orbital and spin orderings dictate the nature of magnetism. Since orbitals are directional and couple to the lattice, magnetism in these materials can be manipulated by external strain, providing a new knob to tune their magnetic properties. Specifically, I obtained phase diagrams of cubic 5d double perovskite Mott insulators in which the transition metal ion is surrounded by an octahedral cage of oxygen atoms. My calculations performed at a mean-field level are able to explain long-standing experimental puzzles related to missing entropy and unusual magnetic susceptibilities in these compounds. In addition, I also construct low energy effective Hamiltonian for distorted 5d 1 double perovskite Mott insulators and find AFM ground states with mean–field theory, which matches experimental results. A new design principle for topological flat bands utilizing strong spin–orbit coupling and orbital frustration is proposed on a honeycomb lattice of transition metal ions.
Book Synopsis Spin-orbit Coupling Influenced X-ray Spectroscopies and Resonant X-ray Magneto-optical Properties of Transition Metal Systems by : Ján Minár
Download or read book Spin-orbit Coupling Influenced X-ray Spectroscopies and Resonant X-ray Magneto-optical Properties of Transition Metal Systems written by Ján Minár and published by Logos Verlag Berlin GmbH. This book was released on 2003 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: Among the many tools one has in hand in material science, the various electronic spectroscopies are of particular interest. Techniques based on synchrotron radiation, such as spin-resolved photoemission, X-ray magnetic circular and linear dichroism, resonant X-ray scattering and also X-ray magnetic microscopy have been shown to provide unique tools for the study of the magnetic phenomena and magnetic materials. However, it became apparent that all these new achievements need a strong theoretical support. Ab-initio theoretical investigations presented here adopted a one-electron picture, within the framework of Density functional theory, using the multiple scattering theory to solve the electronic structure problem. Most of the spectroscopies to be dealt with here can be seen as a direct consequence of the presence of a spontaneous magnetisation and relativistic effects, in particular the spin-orbit coupling. To deal with all relativistic effects and magnetism on the same level, the fully relativistic formalism will be used in the following. Thus, one of the goals of this work is to apply the Korringa-Kohn-Rostoker (KKR) band structure method in its relativistic version to a wide range of spectroscopies. Accordingly, all results will be compared with available experimental data as far as possible. Based on these results various aspects connected with experiments will be discussed in detail. In the first chapter the theoretical basis of this work will be introduced. The second part of this thesis is dedicated to the photoemission spectroscopies, i.e. spin-resolved Auger electron spectroscopy, Fano effects in valence band photoem ission and core level photoemission. In a third part we discuss resonant magneto-optical effects in the X-ray regime. Last chapter is dealing with non-collinear spin-structures within multiple scattering theory and its application to studies of photoemission and X-ray absorption is described.
Book Synopsis Density Functional Analysis of the Spin Exchange Interaction and Spin-Orbit Coupling in Some Magnetic Oxides of Transition-Metal Elements by : Yuemei Zhang
Download or read book Density Functional Analysis of the Spin Exchange Interaction and Spin-Orbit Coupling in Some Magnetic Oxides of Transition-Metal Elements written by Yuemei Zhang and published by . This book was released on 2011 with total page 140 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spin-orbit Interaction and Topological Phases at Correlated Oxide Interfaces by : Andrea Peralta Somoza
Download or read book Spin-orbit Interaction and Topological Phases at Correlated Oxide Interfaces written by Andrea Peralta Somoza and published by . This book was released on 2024 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, quantum materiales have gained relevance in solid-state physics because of their ability to manifest emergent quantum phenomena. Many of these phenomena arise from split-orbit coupling, a relativistic quantum interaction that links the orbital motion of electrons to their spin, generating unusual electronic phases and unconventional magetic behaviour...
Book Synopsis Spin-Orbit Coupled Quantum Magnetism in the 3D-Honeycomb Iridates by : Itamar Kimchi
Download or read book Spin-Orbit Coupled Quantum Magnetism in the 3D-Honeycomb Iridates written by Itamar Kimchi and published by . This book was released on 2015 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this doctoral dissertation, we consider the significance of spin-orbit coupling for the phases of matter which arise for strongly correlated electrons. We explore emergent behavior in quantum many-body systems, including symmetry-breaking orders, quantum spin liquids, and unconventional superconductivity. Our study is cemented by a particular class of Mott-insulating materials, centered around a family of two- and three-dimensional iridium oxides, whose honeycomb-like lattice structure admits peculiar magnetic interactions, the so-called Kitaev exchange. By analyzing recent experiments on these compounds, we show that this unconventional exchange is the key ingredient in describing their magnetism, and then use a combination of numerical and analytical techniques to investigate the implications for the phase diagram as well as the physics of the proximate three-dimensional quantum spin liquid phases. These long-ranged-entangled fractionalized phases should exhibit special features, including finite-temperature stability as well as unconventional high-Tc superconductivity upon charge-doping, which should aid future experimental searches for spin liquid physics. Our study explores the nature of frustration and fractionalization which can arise in quantum systems in the presence of strong spin-orbit coupling.
Book Synopsis Spin-orbit Coupling in Molecules by : William Graham Richards
Download or read book Spin-orbit Coupling in Molecules written by William Graham Richards and published by Oxford University Press, USA. This book was released on 1981 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Oxide Nanoparticles by : Oliver Diwald
Download or read book Metal Oxide Nanoparticles written by Oliver Diwald and published by John Wiley & Sons. This book was released on 2021-09-10 with total page 903 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ein umfassendes Referenzwerk für Chemiker und Industriefachleute zum Thema Nanopartikel Nanopartikel aus Metalloxid sind ein wesentlicher Bestandteil zahlreicher natürlicher und technologischer Prozesse ? von der Mineralumwandlung bis zur Elektronik. Darüber hinaus kommen Metalloxid-Nanopartikel in Pulverform im Maschinenbau, in der Elektronik und der Energietechnik zum Einsatz. Das Werk Metal Oxide Nanoparticles: Formation, Functional Properties and Interfaces stellt die wichtigsten Synthese- und Formulierungsansätze bei der Nutzung von Metalloxid-Nanopartikeln als Funktionsmaterialien vor. Es werden die üblichen Verarbeitungswege erklärt und die physikalischen und chemischen Eigenschaften der Partikel mithilfe von umfassenden und ergänzenden Charakterisierungsmethoden bewertet. Dieses Werk kann als Einführung in die Formulierung von Nanopartikeln, ihre Grenzflächenchemie und ihre funktionellen Eigenschaften im Nanobereich genutzt werden. Darüber hinaus dient es zum vertiefenden Verständnis, denn das Buch enthält detaillierte Angaben zu fortschrittlichen Methoden bei der physikalischen, chemischen, Oberflächen- und Grenzflächencharakterisierung von Metalloxid-Nanopartikeln in Pulvern und Dispersionen. *Erläuterung der Anwendung von Metalloxid-Nanopartikeln und der wirtschaftlichen Auswirkungen *Betrachtung der Partikelsynthese, einschließlich der Grundsätze ausgewählter Bottom-up-Strategien *Untersuchung der Formulierung von Nanopartikeln mit einer Auswahl von Verarbeitungs- und Anwendungswegen *Diskussion der Bedeutung von Partikeloberflächen und -grenzflächen für Strukturbildung, Stabilität und funktionelle Materialeigenschaften *Betrachtung der Charakterisierung von Metalloxid-Nanopartikeln auf verschiedenen Längenskalen In diesem Buch finden Forscher im akademischen Bereich, Chemiker in der Industrie und Doktoranden wichtige Erkenntnisse über die Synthese, Eigenschaften und Anwendungen von Metalloxid-Nanopartikeln.
Book Synopsis Perovskite Ceramics by : Jose Luis Clabel Huaman
Download or read book Perovskite Ceramics written by Jose Luis Clabel Huaman and published by Elsevier. This book was released on 2022-11-11 with total page 626 pages. Available in PDF, EPUB and Kindle. Book excerpt: Perovskite-based ceramics are a significant class of innovative materials with fascinating physical properties, which are now receiving intensive research attention in condensed matter physics and in the area of practical device applications. Perovskite Ceramics provides a state-of-the-art review on the latest advances in perovskite-based ceramic materials, as well as the development of devices from these materials for different applications. Perovskite Ceramics: Recent Advances and Emerging Applications is divided into two main parts. The first part focuses on the basics of perovskite-based ceramic materials and includes chapters on the fundamentals, synthesis and processing, characterization, and properties of these materials. Chapters are also included on bulk and thin materials, phase transitions, polaronic effects and the compensation and screening of ferroelectricity. This section will allow the reader to familiarize themselves with the standard traditional approach, but it will also introduce new concepts that are fast evolving in this field. The second part presents an extensive review of up-to-date research on new and innovative advances in perovskite-based ceramic materials. Chapters cover multiferroic applications, lead-free perovskites, energy storage applications, perovskite-based memories, light manipulation and spectral modifications, and solar cells and fuel cells. All these fields of research are rapidly evolving, so the book acts a platform to showcase latest results on optical strategies and materials for light manipulation, and spectral up- and down-conversion too (mainly rare earth doped oxides and complexes). The book will be an essential reference resource for academic and industrial researchers working in materials research and development particularly in functional and oxide ceramics and perovskites. A comprehensive and systematic review of advanced research in perovskite-based ceramics Covers both oxide and halide perovskites, their synthesis, processing, properties and applications Presents advanced methods of synthesis as well as latest applications Discusses all aspects from theory to production Covers the most important advances both in terms of new materials and application strategies
Book Synopsis Exploring Spin/orbital Patterns in Correlated Oxides by : Filomena Forte
Download or read book Exploring Spin/orbital Patterns in Correlated Oxides written by Filomena Forte and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transition metal oxides show unconventional and competing phenomena, including metal-insulator transitions, superconductivity, magnetic and orbital orderings, colossal magnetoresistance, all being realized in the presence of orbital degeneracy. A formidable example is provided by the Ruddlesden-Popper series ruthenates (Sr, Ca)n+1RunO3n+1. In this book, mean-field and numerical calculations are presented, based on a theoretical model describing layered Ca-based ruthenates. The mechanism that can give rise to the orbital pattern consistent with the Mott insulating and G-type antiferromagnetic phase in the single layer Ca2RuO4 is studied. Moreover, the response to a spin/orbital polarizing field is analyzed, in connection to the highly field-tunable transport properties of Ca3Ru2O7. The second part of this book is devoted to the description of Resonant Inelastic X-Ray Scattering (RIXS), as a powerful tool to detect low-lying-energy electronic excitations. The 'ultrashort lifetime limit expansion' of the RIXS cross-section is introduced and used to demonstrate that RIXS can be related to general correlation functions measuring e.g. two-magnon excitations and multi-orbiton excitations.
Book Synopsis Metal Oxide-Based Thin Film Structures by : Nini Pryds
Download or read book Metal Oxide-Based Thin Film Structures written by Nini Pryds and published by Elsevier. This book was released on 2017-09-07 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metal Oxide-Based Thin Film Structures: Formation, Characterization and Application of Interface-Based Phenomena bridges the gap between thin film deposition and device development by exploring the synthesis, properties and applications of thin film interfaces. Part I deals with theoretical and experimental aspects of epitaxial growth, the structure and morphology of oxide-metal interfaces deposited with different deposition techniques and new developments in growth methods. Part II concerns analysis techniques for the electrical, optical, magnetic and structural properties of thin film interfaces. In Part III, the emphasis is on ionic and electronic transport at the interfaces of Metal-oxide thin films. Part IV discusses methods for tailoring metal oxide thin film interfaces for specific applications, including microelectronics, communication, optical electronics, catalysis, and energy generation and conservation. This book is an essential resource for anyone seeking to further their knowledge of metal oxide thin films and interfaces, including scientists and engineers working on electronic devices and energy systems and those engaged in research into electronic materials. Introduces the theoretical and experimental aspects of epitaxial growth for the benefit of readers new to the field Explores state-of-the-art analysis techniques and their application to interface properties in order to give a fuller understanding of the relationship between macroscopic properties and atomic-scale manipulation Discusses techniques for tailoring thin film interfaces for specific applications, including information, electronics and energy technologies, making this book essential reading for materials scientists and engineers alike
