Spin Dependent Transport Properties Of Metallic And Semiconducting Nanostructures

Download Spin Dependent Transport Properties Of Metallic And Semiconducting Nanostructures full books in PDF, epub, and Kindle. Read online Spin Dependent Transport Properties Of Metallic And Semiconducting Nanostructures ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!

Spin Dependent Transport Properties of Metallic and Semiconducting Nanostructures

Author : Keshab R. Sapkota
Publisher :
ISBN 13 :
Total Pages : 123 pages
Book Rating : 4.:/5 (939 download)

DOWNLOAD NOW!

Book Synopsis Spin Dependent Transport Properties of Metallic and Semiconducting Nanostructures by : Keshab R. Sapkota

Download or read book Spin Dependent Transport Properties of Metallic and Semiconducting Nanostructures written by Keshab R. Sapkota and published by . This book was released on 2015 with total page 123 pages. Available in PDF, EPUB and Kindle. Book excerpt: Present day computing and communication devices rely on two different classes of technologies; information processing devices are based on electrical charge transport while information storage devices are based on orientation of electron spins in magnetic materials. Realization of a hybrid-type device based on charge as well as spin properties of electrons would perform both of these actions thereby enhancing computation power to many folds and reducing power consumptions. This dissertation focuses on the fabrication of such spin-devices based on metallic and semiconducting nanostructures. A simplified design of the spin-device consists of a spin injector, a semiconducting or a metallic channel, and a spin detector. The channel is the carrier of spin signal from the injector to the detector, and therefore plays a crucial role in the manipulation of spin properties in the device. In this work, nanostructures such as nanowires and nanostripes were used to function as the channel in the spin-device. Various physical and chemical methods were used to synthesize the nanostructures. Fabrication of the spin-devices from the nanostructures were carried out using two-stage electron beam lithography process. These spin-devices show large spin relaxation lengths compared to common materials such as copper and offer potential for novel future technologies. Further, nanowires of Co2FeAl and Cd1-xMnxTe were synthesized and studied their structural, magnetic and electrical transport properties to understand whether they can be used in spin-devices as spin injectors and spin detectors. In summary, the studies carried out in this thesis opens up several new material systems for future device applications.

Spin Dependent Transport in Magnetic Nanostructures

Author : Sadamichi Maekawa
Publisher : CRC Press
ISBN 13 : 9781420024579
Total Pages : 296 pages
Book Rating : 4.0/5 (245 download)

DOWNLOAD NOW!

Book Synopsis Spin Dependent Transport in Magnetic Nanostructures by : Sadamichi Maekawa

Download or read book Spin Dependent Transport in Magnetic Nanostructures written by Sadamichi Maekawa and published by CRC Press. This book was released on 2002-07-11 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: In magnetic systems of nano-meter size, the interplay between spin and charge of electrons provides unique transport phenomena. In magnetic superlattices, magnetic and non-magnetic metallic thin films with thickness of the order of one nano-meter are piled-up alternately. Since the discovery of giant magnetoresistance (GMR) in these superlattices in 1988, spin dependent transport phenomena in magnetic nanostructures have received much attention from both academic and technological points of view. Ferromagnetic tunnel junctions made of ferromagnetic metal electrodes and a very thin insulating barrier between them are also of current interest as magnetoresistive devices, where the tunneling current depends on the relative orientation of magnetization (TMR). In addition to magnetic superlattices and magnetic tunnel junctions, magnetic granular systems and magnetic dots have been studied extensively as magnetoresistive systems. Edited by two of the world's leading authorities, Spin Dependent Transport in Magnetic Nanostructures introduces and explains the basic physics and applications of a variety of spin-dependent transport phenomena in magnetic nanostructures with particular emphasis on magnetic multilayers and magnetic tunnel junctions.

Semiclassical Theory of Spin Transport in Metallic and Semiconductor Heterostructures

Author : Yunong Qi
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (547 download)

DOWNLOAD NOW!

Book Synopsis Semiclassical Theory of Spin Transport in Metallic and Semiconductor Heterostructures by : Yunong Qi

Download or read book Semiclassical Theory of Spin Transport in Metallic and Semiconductor Heterostructures written by Yunong Qi and published by . This book was released on 2003 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, transport properties of magnetic nanostructures have been one of the most active research areas of Condensed Matter Physics. Many emerging scientific issues are not satisfactorily answered. This Thesis will be focused on one of the most important theoretical problems in magnetic nanostructures; namely, it aims at a better understanding of magnetotransport phenomena. Two most common scattering mechanisms, diffusive scattering in the bulk of the layers (or particles) and ballistic scattering at the interface (or boundaries) are believed to be the main sources of magnetoresistance (or resistance). Previously, one usually takes the bulk and interface scattering either ballistically or diffusively, but not both. In a realistic experimental structure, both scatterings exist and they are equally important. A unified theory of spin transport was established by using semiclassical Boltzmann equation approach in this Thesis. This work significantly generalizes previous scattering theories and can be broadly used to understand the magnetotransport properties of a variety of magnetic nanostructures. With this formalism, the interface and bulk scatterings can be successfully treated on equal footing. The conductance and magnetoresistance of a pinhole structure, then, can be calculated. It is found that both conductance and magnetoresistance can be optimized to desired values for magnetic recording application. To extend our model to semiconductor heterostructures, a more generalized, theoretical model has been developed in the study of non-zero magnetic and electric fields effects on spin transport properties. It is found that the spin-diffusion equation for non-equilibrium spin density and spin current density involves a number of new relevant length scales that explicitly depend on the electric and magnetic fields. The set of macroscopic equations can be used to address a very broad range of spin transport problems from magnetic, metallic multilayers to semiconductor heterostructures. The subject of spin transport we have completed is not only fundamentally interesting from the viewpoint of theoretical and material physics, but also greatly important for the development of emerging technology such as magnetic random access memory (MRAM) (which is a novel, non-volatile device and potential use for storing information in the computer), transistor, and possibly quantum computers.

Semiconductor Spintronics and Quantum Computation

Author : D.D. Awschalom
Publisher : Springer Science & Business Media
ISBN 13 : 366205003X
Total Pages : 321 pages
Book Rating : 4.6/5 (62 download)

DOWNLOAD NOW!

Book Synopsis Semiconductor Spintronics and Quantum Computation by : D.D. Awschalom

Download or read book Semiconductor Spintronics and Quantum Computation written by D.D. Awschalom and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 321 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past few decades of research and development in solid-state semicon ductor physics and electronics have witnessed a rapid growth in the drive to exploit quantum mechanics in the design and function of semiconductor devices. This has been fueled for instance by the remarkable advances in our ability to fabricate nanostructures such as quantum wells, quantum wires and quantum dots. Despite this contemporary focus on semiconductor "quantum devices," a principal quantum mechanical aspect of the electron - its spin has it accounts for an added quan largely been ignored (except in as much as tum mechanical degeneracy). In recent years, however, a new paradigm of electronics based on the spin degree of freedom of the electron has begun to emerge. This field of semiconductor "spintronics" (spin transport electron ics or spin-based electronics) places electron spin rather than charge at the very center of interest. The underlying basis for this new electronics is the intimate connection between the charge and spin degrees of freedom of the electron via the Pauli principle. A crucial implication of this relationship is that spin effects can often be accessed through the orbital properties of the electron in the solid state. Examples for this are optical measurements of the spin state based on the Faraday effect and spin-dependent transport measure ments such as giant magneto-resistance (GMR). In this manner, information can be encoded in not only the electron's charge but also in its spin state, i. e.

Theoretical Studies of Spin Dependent Transport Phenomena

Author : Christoph Michel
Publisher : Cuvillier Verlag
ISBN 13 : 3867274851
Total Pages : 205 pages
Book Rating : 4.8/5 (672 download)

DOWNLOAD NOW!

Book Synopsis Theoretical Studies of Spin Dependent Transport Phenomena by : Christoph Michel

Download or read book Theoretical Studies of Spin Dependent Transport Phenomena written by Christoph Michel and published by Cuvillier Verlag. This book was released on 2007 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Spin Dependent Transport in Semiconductor Nanostructures

Author : Yilmaz Gul
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (116 download)

DOWNLOAD NOW!

Book Synopsis Spin Dependent Transport in Semiconductor Nanostructures by : Yilmaz Gul

Download or read book Spin Dependent Transport in Semiconductor Nanostructures written by Yilmaz Gul and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Spintronics Handbook, Second Edition: Spin Transport and Magnetism

Author : Evgeny Y. Tsymbal
Publisher : CRC Press
ISBN 13 : 0429805268
Total Pages : 646 pages
Book Rating : 4.4/5 (298 download)

DOWNLOAD NOW!

Book Synopsis Spintronics Handbook, Second Edition: Spin Transport and Magnetism by : Evgeny Y. Tsymbal

Download or read book Spintronics Handbook, Second Edition: Spin Transport and Magnetism written by Evgeny Y. Tsymbal and published by CRC Press. This book was released on 2019-06-26 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spintronics Handbook, Second Edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications. Features: Presents the most comprehensive reference text for the overlapping fields of spintronics (spin transport) and magnetism. Covers the full spectrum of materials and structures, from silicon and organic semiconductors to carbon nanotubes, graphene, and engineered nanostructures. Extends coverage of two-dimensional materials beyond graphene, including molybdenum disulfide and study of their spin relaxation mechanisms Includes new dedicated chapters on cutting-edge topics such as spin-orbit torques, topological insulators, half metals, complex oxide materials and skyrmions. Discusses important emerging areas of spintronics with superconductors, spin-wave spintronics, benchmarking of spintronics devices, and theory and experimental approaches to molecular spintronics. Evgeny Tsymbal's research is focused on computational materials science aiming at the understanding of fundamental properties of advanced ferromagnetic and ferroelectric nanostructures and materials relevant to nanoelectronics and spintronics. He is a George Holmes University Distinguished Professor at the Department of Physics and Astronomy of the University of Nebraska-Lincoln (UNL), Director of the UNL’s Materials Research Science and Engineering Center (MRSEC), and Director of the multi-institutional Center for NanoFerroic Devices (CNFD). Igor Žutić received his Ph.D. in theoretical physics at the University of Minnesota. His work spans a range of topics from high-temperature superconductors and ferromagnetism that can get stronger as the temperature is increased, to prediction of various spin-based devices. He is a recipient of 2006 National Science Foundation CAREER Award, 2005 National Research Council/American Society for Engineering Education Postdoctoral Research Award, and the National Research Council Fellowship (2003-2005). His research is supported by the National Science Foundation, the Office of Naval Research, the Department of Energy, and the Airforce Office of Scientific Research.

Spin Injection and Transport in Semiconductor and Metal Nanostructures

Author : Lei Zhu
Publisher :
ISBN 13 :
Total Pages : 127 pages
Book Rating : 4.:/5 (471 download)

DOWNLOAD NOW!

Book Synopsis Spin Injection and Transport in Semiconductor and Metal Nanostructures by : Lei Zhu

Download or read book Spin Injection and Transport in Semiconductor and Metal Nanostructures written by Lei Zhu and published by . This book was released on 2009 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this thesis we investigate spin injection and transport in semiconductor and metal nanostructures. To overcome the limitation imposed by the low efficiency of spin injection and extraction and strict requirements for retention of spin polarization within the semiconductor, novel device structures with additional logic functionality and optimized device performance have been developed. Weak localization/antilocalization measurements and analysis are used to assess the influence of surface treatments on elastic, inelastic and spin-orbit scatterings during the electron transport within the two-dimensional electron layer at the InAs surface. Furthermore, we have used spin-valve and scanned probe microscopy measurements to investigate the influence of sulfur-based surface treatments and electrically insulating barrier layers on spin injection into, and spin transport within, the two-dimensional electron layer at the surface of p-type InAs. We also demonstrate and analyze a three-terminal, all-electrical spintronic switching device, combining charge current cancellation by appropriate device biasing and ballistic electron transport. The device yields a robust, electrically amplified spin-dependent current signal despite modest efficiency in electrical injection of spin-polarized electrons. Detailed analyses provide insight into the advantages of ballistic, as opposed to diffusive, transport in device operation, as well as scalability to smaller dimensions, and allow us to eliminate the possibility of phenomena unrelated to spin transport contributing to the observed device functionality. The influence of the device geometry on magnetoresistance of nanoscale spin-valve structures is also demonstrated and discussed. Shortcomings of the simplified one-dimensional spin diffusion model for spin valve are elucidated, with comparison of the thickness and the spin diffusion length in the nonmagnetic channel as the criterion for validity of the 1D model. Our work contributes directly to the realization of spin valve and spin transistor devices based on III-V semiconductors, and offers new opportunities to engineer the behavior of spintronic devices at the nanoscale.

Theory of Transport Properties of Semiconductor Nanostructures

Author : Eckehard Schöll
Publisher : Springer Science & Business Media
ISBN 13 : 1461558077
Total Pages : 394 pages
Book Rating : 4.4/5 (615 download)

DOWNLOAD NOW!

Book Synopsis Theory of Transport Properties of Semiconductor Nanostructures by : Eckehard Schöll

Download or read book Theory of Transport Properties of Semiconductor Nanostructures written by Eckehard Schöll and published by Springer Science & Business Media. This book was released on 2013-11-27 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in the fabrication of semiconductors have created almost un limited possibilities to design structures on a nanometre scale with extraordinary electronic and optoelectronic properties. The theoretical understanding of elec trical transport in such nanostructures is of utmost importance for future device applications. This represents a challenging issue of today's basic research since it requires advanced theoretical techniques to cope with the quantum limit of charge transport, ultrafast carrier dynamics and strongly nonlinear high-field ef fects. This book, which appears in the electronic materials series, presents an over view of the theoretical background and recent developments in the theory of electrical transport in semiconductor nanostructures. It contains 11 chapters which are written by experts in their fields. Starting with a tutorial introduction to the subject in Chapter 1, it proceeds to present different approaches to transport theory. The semiclassical Boltzmann transport equation is in the centre of the next three chapters. Hydrodynamic moment equations (Chapter 2), Monte Carlo techniques (Chapter 3) and the cellular au tomaton approach (Chapter 4) are introduced and illustrated with applications to nanometre structures and device simulation. A full quantum-transport theory covering the Kubo formalism and nonequilibrium Green's functions (Chapter 5) as well as the density matrix theory (Chapter 6) is then presented.

Spin Dependent Transport in Semiconductor Nanostructures

Author : Y. Gul
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (16 download)

DOWNLOAD NOW!

Book Synopsis Spin Dependent Transport in Semiconductor Nanostructures by : Y. Gul

Download or read book Spin Dependent Transport in Semiconductor Nanostructures written by Y. Gul and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Spintronics Handbook, Second Edition: Spin Transport and Magnetism

Author : Evgeny Y. Tsymbal
Publisher : CRC Press
ISBN 13 : 0429750897
Total Pages : 735 pages
Book Rating : 4.4/5 (297 download)

DOWNLOAD NOW!

Book Synopsis Spintronics Handbook, Second Edition: Spin Transport and Magnetism by : Evgeny Y. Tsymbal

Transport Phenomena in Micro- and Nanoscale Functional Materials and Devices

Author : Joao B. Sousa
Publisher : Elsevier
ISBN 13 : 0323460976
Total Pages : 484 pages
Book Rating : 4.3/5 (234 download)

DOWNLOAD NOW!

Book Synopsis Transport Phenomena in Micro- and Nanoscale Functional Materials and Devices by : Joao B. Sousa

Download or read book Transport Phenomena in Micro- and Nanoscale Functional Materials and Devices written by Joao B. Sousa and published by Elsevier. This book was released on 2021-03-26 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: Transport Phenomena in Micro- and Nanoscale Functional Materials and Devices offers a pragmatic view on transport phenomena for micro- and nanoscale materials and devices, both as a research tool and as a means to implant new functions in materials. Chapters emphasize transport properties (TP) as a research tool at the micro/nano level and give an experimental view on underlying techniques. The relevance of TP is highlighted through the interplay between a micro/nanocarrier's characteristics and media characteristics: long/short-range order and disorder excitations, couplings, and in energy conversions. Later sections contain case studies on the role of transport properties in functional nanomaterials. This includes transport in thin films and nanostructures, from nanogranular films, to graphene and 2D semiconductors and spintronics, and from read heads, MRAMs and sensors, to nano-oscillators and energy conversion, from figures of merit, micro-coolers and micro-heaters, to spincaloritronics. Presents a pragmatic description of electrical transport phenomena in micro- and nanoscale materials and devices from an experimental viewpoint Provides an in-depth overview of the experimental techniques available to measure transport phenomena in micro- and nanoscale materials Features case studies to illustrate how each technique works Highlights emerging areas of interest in micro- and nanomaterial transport phenomena, including spintronics

Handbook of Spin Transport and Magnetism

Author : Evgeny Y. Tsymbal
Publisher : CRC Press
ISBN 13 : 1439803781
Total Pages : 797 pages
Book Rating : 4.4/5 (398 download)

DOWNLOAD NOW!

Book Synopsis Handbook of Spin Transport and Magnetism by : Evgeny Y. Tsymbal

Download or read book Handbook of Spin Transport and Magnetism written by Evgeny Y. Tsymbal and published by CRC Press. This book was released on 2016-04-19 with total page 797 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the past several decades, the research on spin transport and magnetism has led to remarkable scientific and technological breakthroughs, including Albert Fert and Peter Grunberg's Nobel Prize-winning discovery of giant magnetoresistance (GMR) in magnetic metallic multilayers. Handbook of Spin Transport and Magnetism provides a comprehensive, bal

Spintronics Handbook

Author : Evgeny Y. Tsymbal
Publisher :
ISBN 13 : 9781498769723
Total Pages : 0 pages
Book Rating : 4.7/5 (697 download)

DOWNLOAD NOW!

Book Synopsis Spintronics Handbook by : Evgeny Y. Tsymbal

Download or read book Spintronics Handbook written by Evgeny Y. Tsymbal and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The second edition offers an update on the single most comprehensive survey of the two intertwined fields of spintronics and magnetism, covering the diverse array of materials and structures, including silicon, organic semiconductors, carbon nanotubes, graphene, and engineered nanostructures. It focuses on seminal pioneering work, together with the latest in cutting-edge advances, notably extended discussion of two-dimensional materials beyond graphene, topological insulators, skyrmions, and molecular spintronics. The main sections cover physical phenomena, spin-dependent tunneling, control of spin and magnetism in semiconductors, and spin-based applications.

Electron Spin-dependent Properties of Semiconductor Nanocrystals and Endohedral Fullerenes

Author : Joshua Aaron Schrier
Publisher :
ISBN 13 :
Total Pages : 324 pages
Book Rating : 4.:/5 (35 download)

DOWNLOAD NOW!

Book Synopsis Electron Spin-dependent Properties of Semiconductor Nanocrystals and Endohedral Fullerenes by : Joshua Aaron Schrier

Download or read book Electron Spin-dependent Properties of Semiconductor Nanocrystals and Endohedral Fullerenes written by Joshua Aaron Schrier and published by . This book was released on 2005 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Spin-dependent Transport in Semiconductor-based Magnetic Nanostructures

Author : Athanasios N. Chantis
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.:/5 (57 download)

DOWNLOAD NOW!

Book Synopsis Spin-dependent Transport in Semiconductor-based Magnetic Nanostructures by : Athanasios N. Chantis

Download or read book Spin-dependent Transport in Semiconductor-based Magnetic Nanostructures written by Athanasios N. Chantis and published by . This book was released on 2002 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Nanomagnetism and Spintronics

Author : Farzad Nasirpouri
Publisher : World Scientific
ISBN 13 : 9814273058
Total Pages : 401 pages
Book Rating : 4.8/5 (142 download)

DOWNLOAD NOW!

Book Synopsis Nanomagnetism and Spintronics by : Farzad Nasirpouri

Download or read book Nanomagnetism and Spintronics written by Farzad Nasirpouri and published by World Scientific. This book was released on 2011 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomagnetism and spintronics are two close subfields of nanoscience, explaining the effect of substantial magnetic properties of matter when the materials fabrication is realized at a comparable length size. Nanomagnetism deals with the magnetic phenomena specific to the structures having dimensions in the submicron range. The fact that the electronic transport properties of materials are dependent on the magnetic properties' artificial nanostructures, i.e., giant magnetoresistance (GMR) or tunneling magnetoresistance (TMR), has revolutionized spintronics science and technology. This book explains the concepts of nanomagnetism and spintronics by viewing the most recent research works from internationally distinguished research groups. Placing special emphasis on crucial fundamental and technical aspects of nanomagnetism and spintronics, it serves as a one-stop reference for universities offering postgraduate programs in nanotechnology or related disciplines. This unique book deals with all three stages required for conducting research in nanomagnetism and spintronics including fabrication, characterization and applications of nanomagnetic and spintronics materials, providing general concepts and an insightful overview of this subject for research students and scientists from different backgrounds investigating the multidisciplinary area of nanotechnology.