Colossal Magnetoresistance and Phase Separation in Magnetic Semiconductors

Colossal Magnetoresistance and Phase Separation in Magnetic Semiconductors PDF Author: Eduard L Nagaev
Publisher: World Scientific
ISBN: 1783261331
Category : Science
Languages : en
Pages : 476

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Book Description
Colossal magnetoresistance materials, to which manganites and conventional ferromagnetic semiconductors belong, draw great attention because of their intriguing physical properties and the excellent prospects for their practical applications in electronic devices. In addition, magnetic semiconductors are basic materials for high-temperature conductors, and it is impossible to construct a theory of the latter without elucidating properties of the former. This book presents theoretical and experimental results on manganites and conventional magnetic semiconductors, with emphasis on the former. It is addressed mainly to researchers dealing with manganites or high-temperature superconductors, but is also useful for undergraduate and graduate students. Contents:Introduction and Necessary Information about Non-magnetic Semiconductors and Insulating Magnetic SystemsPrinciples of Theory of Conducting MagneticNon-degenerate Ferromagnetic SemiconductorsNon-degenerate Antiferromagnetic Semiconductors and Self-trapped StatesDegenerate Ferromagnetic SemiconductorsDegenerate Antiferromagnetic Semiconductors and Phase SeparationLanthanum ManganitesOther ManganitesSpecific Effects and Theory of Manganites Readership: Advanced graduate students, lecturers and researchers in condensed matter physics, superconductivity and magnetic materials. Keywords:Magnetic Semiconductors;Magnetic Polaron (Ferron);Electronic Phase Separation;Manganites;Colossal Magnetoresistance;Solid State Physics

Colossal Magnetoresistance and Phase Separation in Magnetic Semiconductors

Colossal Magnetoresistance and Phase Separation in Magnetic Semiconductors PDF Author: Eduard L Nagaev
Publisher: World Scientific
ISBN: 1783261331
Category : Science
Languages : en
Pages : 476

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Book Description
Colossal magnetoresistance materials, to which manganites and conventional ferromagnetic semiconductors belong, draw great attention because of their intriguing physical properties and the excellent prospects for their practical applications in electronic devices. In addition, magnetic semiconductors are basic materials for high-temperature conductors, and it is impossible to construct a theory of the latter without elucidating properties of the former. This book presents theoretical and experimental results on manganites and conventional magnetic semiconductors, with emphasis on the former. It is addressed mainly to researchers dealing with manganites or high-temperature superconductors, but is also useful for undergraduate and graduate students. Contents:Introduction and Necessary Information about Non-magnetic Semiconductors and Insulating Magnetic SystemsPrinciples of Theory of Conducting MagneticNon-degenerate Ferromagnetic SemiconductorsNon-degenerate Antiferromagnetic Semiconductors and Self-trapped StatesDegenerate Ferromagnetic SemiconductorsDegenerate Antiferromagnetic Semiconductors and Phase SeparationLanthanum ManganitesOther ManganitesSpecific Effects and Theory of Manganites Readership: Advanced graduate students, lecturers and researchers in condensed matter physics, superconductivity and magnetic materials. Keywords:Magnetic Semiconductors;Magnetic Polaron (Ferron);Electronic Phase Separation;Manganites;Colossal Magnetoresistance;Solid State Physics

Colossal Magnetoresistance and Phase Separation in Magnetic Semiconductors

Colossal Magnetoresistance and Phase Separation in Magnetic Semiconductors PDF Author: Ėduard Leonovich Nagaev
Publisher: World Scientific Publishing Company
ISBN: 9781860942952
Category : Science
Languages : en
Pages : 457

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Book Description
This book presents theoretical and experimental results on manganites and conventional magnetic semiconductors, with emphasis on the former. It is addressed mainly to researchers dealing with manganites or high-temperature superconductors, but is also useful for undergraduate and graduate students.

Nanoscale Phase Separation and Colossal Magnetoresistance

Nanoscale Phase Separation and Colossal Magnetoresistance PDF Author: Elbio Dagotto
Publisher: Springer Science & Business Media
ISBN: 366205244X
Category : Science
Languages : en
Pages : 465

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Book Description
The study of the spontaneous formation of nanostructures in single crystals of several compounds is now a major area of research in strongly correlated electrons. These structures appear to originate in the competition of phases. The book addresses nanoscale phase separation, focusing on the manganese oxides known as manganites that have the colossal magnetoresistance (CMR) effect of potential relevance for device applications. It is argued that the nanostructures are at the heart of the CMR phenomenon. The book contains updated information on manganite research directed to experts, both theorists and experimentalists. However, graduate students or postdocs will find considerable introductory material, including elements of computational physics.

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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Book Description


Nanoscale Phase Separation and Colossal Magnetoresistance

Nanoscale Phase Separation and Colossal Magnetoresistance PDF Author: Elbio Dagotto
Publisher: Springer Science & Business Media
ISBN: 9783540432456
Category : Medical
Languages : en
Pages : 492

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Book Description
The study of the spontaneous formation of nanostructures in single crystals of several compounds is now a major area of research in strongly correlated electrons. These structures appear to originate in the competition of phases. The book addresses nanoscale phase separation, focusing on the manganese oxides known as manganites that have the colossal magnetoresistance (CMR) effect of potential relevance for device applications. It is argued that the nanostructures are at the heart of the CMR phenomenon. The book contains updated information on manganite research directed to experts, both theorists and experimentalists. However, graduate students or postdocs will find considerable introductory material, including elements of computational physics.

Physics of Manganites

Physics of Manganites PDF Author: T.A. Kaplan
Publisher: Springer Science & Business Media
ISBN: 0306470918
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.

Springer Handbook of Glass

Springer Handbook of Glass PDF Author: J. David Musgraves
Publisher: Springer Nature
ISBN: 3319937286
Category : Technology & Engineering
Languages : en
Pages : 1851

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Book Description
This handbook provides comprehensive treatment of the current state of glass science from the leading experts in the field. Opening with an enlightening contribution on the history of glass, the volume is then divided into eight parts. The first part covers fundamental properties, from the current understanding of the thermodynamics of the amorphous state, kinetics, and linear and nonlinear optical properties through colors, photosensitivity, and chemical durability. The second part provides dedicated chapters on each individual glass type, covering traditional systems like silicates and other oxide systems, as well as novel hybrid amorphous materials and spin glasses. The third part features detailed descriptions of modern characterization techniques for understanding this complex state of matter. The fourth part covers modeling, from first-principles calculations through molecular dynamics simulations, and statistical modeling. The fifth part presents a range of laboratory and industrial glass processing methods. The remaining parts cover a wide and representative range of applications areas from optics and photonics through environment, energy, architecture, and sensing. Written by the leading international experts in the field, the Springer Handbook of Glass represents an invaluable resource for graduate students through academic and industry researchers working in photonics, optoelectronics, materials science, energy, architecture, and more.

Nanomagnetism and Spintronics

Nanomagnetism and Spintronics PDF Author: Jun-ichiro Inoue
Publisher: Elsevier Inc. Chapters
ISBN: 0128086769
Category : Science
Languages : en
Pages : 372

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Book Description
Novel magnetotransport phenomena appear when magnet sizes become nanoscale. Typical examples of such phenomena are giant magnetoresistance (GMR) in magnetic multilayers, tunnel magnetoresistance (TMR) in ferromagnetic tunnel junctions, and ballistic magnetoresistance (BMR) in magnetic nanocontacts. In this chapter, we first briefly review the relationship between spin-dependent resistivity and electronic structures in metals and alloys, and describe microscopic methods for investigating electrical transport. We then review the essential aspects of GMR, TMR, and BMR, emphasizing the role of the electronic structures of the constituent metals of these junctions and the effects of roughness on the electrical resistivity (or resistance). The important factors that control GMR are shown to be the spin-dependent random potential at interfaces and band matching/mismatching between magnetic and nonmagnetic layers. For TMR, several factors are shown to be important in determining the MR ratio, including the shape of the Fermi surface of the electrodes, the symmetry of the wave functions, electron scattering at interfaces, and spin-slip tunneling. An interpretation of TMR in Fe/MgO/Fe and of an oscillation of TMR is presented. TMR in granular films and in the Coulomb-blockade regime is also described. We also provide a brief explanation for other MR effects, such as normal MR, anisotropic MR (AMR) and colossal MR (CMR) in order to clarify the essential difference between these MRs and GMR, TMR, and BMR. These MR effects are attributed to the spin-dependent electrical currents produced in metallic ferromagnets. After the discovery of these different MR effects, the role of spin current was proposed, for example, spin Hall effect and the effects of spin transfer torque, which will be briefly explained in this chapter. The former orginates from the spin–orbit interaction, and can be observed even in nonmagnetic metals and semiconductors. It is closely related to the anomalous Hall effect observed in ferromagnetic metals. The spin transfer torque is an inverse effect of the MR. The MR is the resistivity change produced by magnetization rotation in ferromagnetic junctions, while the spin transfer torque is an effect in which spin-polarized current makes the magnetization rotate. Finally, we briefly introduce the coupled effects of spin, charge, and heat transport, which are called spin caloritronics.

Magnetic Materials

Magnetic Materials PDF Author: Nicola A. Spaldin
Publisher: Cambridge University Press
ISBN: 1139491555
Category : Technology & Engineering
Languages : en
Pages :

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Book Description
Magnetic Materials is an excellent introduction to the basics of magnetism, magnetic materials and their applications in modern device technologies. Retaining the concise style of the original, this edition has been thoroughly revised to address significant developments in the field, including the improved understanding of basic magnetic phenomena, new classes of materials, and changes to device paradigms. With homework problems, solutions to selected problems and a detailed list of references, Magnetic Materials continues to be the ideal book for a one-semester course and as a self-study guide for researchers new to the field. New to this edition: • Entirely new chapters on Exchange Bias Coupling, Multiferroic and Magnetoelectric Materials, Magnetic Insulators • Revised throughout, with substantial updates to the chapters on Magnetic Recording and Magnetic Semiconductors, incorporating the latest advances in the field • New example problems with worked solutions

Magnetophotonics

Magnetophotonics PDF Author: Mitsuteru Inoue
Publisher: Springer Science & Business Media
ISBN: 3642355099
Category : Technology & Engineering
Languages : en
Pages : 238

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Book Description
This book merges theoretical and experimental works initiated in 1997 from consideration of periodical artificial dielectric structures comprising magneto-optical materials. Modern advances in magnetophotonics are discussed giving theoretical analyses and demonstrations of the consequences of light interaction with non-reciprocal media of various designs. This first collection of foundational works is devoted to light-to-artificial magnetic matter phenomena and related applications. The subject covers the physical background and the continuing research in the field of magnetophotonics.