Angle Resolved Photoemission Spectroscopy Of Delafossite Metals
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Angle Resolved Photoemission Spectroscopy Of Delafossite Metals
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Author : Veronika Sunko
language : en
Publisher: Springer
Release Date : 2020-10-08
Angle Resolved Photoemission Spectroscopy Of Delafossite Metals written by Veronika Sunko and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-08 with Science categories.
This thesis describes the results of angle resolved photoemission spectroscopy experiments on delafossite oxide metals, and theoretical work explaining these observations. The study was motivated by the extraordinarily high conductivity of the non-magnetic delafossites PdCoO2 and PtCoO2, the measurement of whose electronic structure is reported and discussed. Two unexpected effects were observed in the course of the investigation; each is described and analysed in detail. Firstly, a previously unrecognised type of spectroscopic signal, allowing the non-magnetic probe of photoemission to become sensitive to spin-spin correlations, was observed in the antiferromagnetic PdCrO2. Its origin was identified as the Kondo-like coupling of itinerant and Mott insulating electrons. Furthermore, surface states exhibiting an unusually large Rashba-like spin-splitting were observed on the transition metal terminated surfaces of delafossites. The large inversion symmetry breaking energy scale, a consequence of the unusual structure of the surface layer, is identified as the origin of the effect.
Probing Unconventional Transport Regimes In Delafossite Metals
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Author : Philippa H. McGuinness
language : en
Publisher: Springer Nature
Release Date : 2022-10-01
Probing Unconventional Transport Regimes In Delafossite Metals written by Philippa H. McGuinness and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-01 with Science categories.
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.
Manipulating Anisotropic Transport And Superconductivity By Focused Ion Beam Microstructuring
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Author : Maja D. Bachmann
language : en
Publisher: Springer Nature
Release Date : 2020-08-28
Manipulating Anisotropic Transport And Superconductivity By Focused Ion Beam Microstructuring written by Maja D. Bachmann and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-08-28 with Technology & Engineering categories.
This thesis presents pioneering work in the relatively new field of focused ion beam (FIB) sculpting of single crystals to produce bespoke devices and enable the investigation of physics that cannot be studied in bulk samples. It begins with a comprehensive and didactic account of how to achieve this sculpting, revealing the ‘tricks of the trade’ of state-of-the-art FIB microstructuring. In subsequent chapters, the author presents ground-breaking results obtained from microstructures of the delafossite oxide metal PdCoO2 and the heavy fermion superconductor CeIrIn5. In these elegant, forefront experiments, a new form of directional ballistic transport in the ultra-pure delafossites is described and explained. Furthermore, a new way to spatially modulate superconductivity induced by strain is demonstrated with electrical transport measurements that agree well with predictions based on thermoelastic finite element simulations.
Journal Of The Physical Society Of Japan
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Author : Nihon Butsuri Gakkai
language : en
Publisher:
Release Date : 2011
Journal Of The Physical Society Of Japan written by Nihon Butsuri Gakkai and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Physics categories.
Quantum Theory Of Solids
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Author : R. E. Peierls
language : en
Publisher: Clarendon Press
Release Date : 1996-08-15
Quantum Theory Of Solids written by R. E. Peierls and has been published by Clarendon Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996-08-15 with Science categories.
This book develops the subject from the basic principles of quantum mechanics. The emphasis is on a single statement of the ideas underlying the various approximations that have to be used and care is taken to separate sound arguments from conjecture. This book is written for the student of theoretical physics who wants to work in the field of solids and for the experimenter with a knowledge of quantum theory who is not content to take other people's arguments for granted. The treatment covers the electron theory of metals as well as the dynamics of crystals, including the author's work on the thermal conductivity of crystals which has been previously published in English.
Physics Briefs
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Author :
language : en
Publisher:
Release Date : 1987
Physics Briefs written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1987 with Physics categories.
Angle Resolved Photoemission Spectroscopy Of Transition Metal Dichalcogenides
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Author : Elena Stellino
language : en
Publisher:
Release Date : 2018
Angle Resolved Photoemission Spectroscopy Of Transition Metal Dichalcogenides written by Elena Stellino and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Handbook Of Transparent Conductors
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Author : David S. Ginley
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-09-11
Handbook Of Transparent Conductors written by David S. Ginley 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 2010-09-11 with Technology & Engineering categories.
Transparent conducting materials are key elements in a wide variety of current technologies including flat panel displays, photovoltaics, organic, low-e windows and electrochromics. The needs for new and improved materials is pressing, because the existing materials do not have the performance levels to meet the ever- increasing demand, and because some of the current materials used may not be viable in the future. In addition, the field of transparent conductors has gone through dramatic changes in the last 5-7 years with new materials being identified, new applications and new people in the field. “Handbook of Transparent Conductors” presents transparent conductors in a historical perspective, provides current applications as well as insights into the future of the devices. It is a comprehensive reference, and represents the most current resource on the subject.
Compendium Of Surface And Interface Analysis
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Author : The Surface Science Society of Japan
language : en
Publisher: Springer
Release Date : 2018-02-19
Compendium Of Surface And Interface Analysis written by The Surface Science Society of Japan and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-02-19 with Technology & Engineering categories.
This book concisely illustrates the techniques of major surface analysis and their applications to a few key examples. Surfaces play crucial roles in various interfacial processes, and their electronic/geometric structures rule the physical/chemical properties. In the last several decades, various techniques for surface analysis have been developed in conjunction with advances in optics, electronics, and quantum beams. This book provides a useful resource for a wide range of scientists and engineers from students to professionals in understanding the main points of each technique, such as principles, capabilities and requirements, at a glance. It is a contemporary encyclopedia for selecting the appropriate method depending on the reader's purpose.
The Physics Of Semiconductors
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Author : Marius Grundmann
language : en
Publisher: Springer
Release Date : 2022-03-21
The Physics Of Semiconductors written by Marius Grundmann and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-03-21 with Technology & Engineering categories.
The 4th edition of this highly successful textbook features copious material for a complete upper-level undergraduate or graduate course, guiding readers to the point where they can choose a specialized topic and begin supervised research. The textbook provides an integrated approach beginning from the essential principles of solid-state and semiconductor physics to their use in various classic and modern semiconductor devices for applications in electronics and photonics. The text highlights many practical aspects of semiconductors: alloys, strain, heterostructures, nanostructures, amorphous semiconductors, and noise, which are essential aspects of modern semiconductor research but often omitted in other textbooks. This textbook also covers advanced topics, such as Bragg mirrors, resonators, polarized and magnetic semiconductors, nanowires, quantum dots, multi-junction solar cells, thin film transistors, and transparent conductive oxides. The 4th edition includes many updates and chapters on 2D materials and aspects of topology. The text derives explicit formulas for many results to facilitate a better understanding of the topics. Having evolved from a highly regarded two-semester course on the topic, The Physics of Semiconductors requires little or no prior knowledge of solid-state physics. More than 2100 references guide the reader to historic and current literature including original papers, review articles and topical books, providing a go-to point of reference for experienced researchers as well.