Download or read book MULTICOUCHES MAGNETIQUES FE AG FE CR CO CU FE CU written by Frédéric Petroff and published by . This book was released on 1992 with total page 228 pages. Available in PDF, EPUB and Kindle. Book excerpt: NOUS AVONS ETUDIE LA CROISSANCE ET LES PROPRIETES MAGNETIQUES ET ELECTRONIQUES DE SUPER-RESEAUX ET MULTICOUCHES MAGNETIQUES FE/AG, FE/CR, CO/CU ET FE/CU. DANS UNE PREMIERE PARTIE, NOUS DECRIVONS L'ELABORATION DES SUPER-RESEAUX FE/AG SUR LES SUBSTRATS GAAS(001) ET MGO(001) PAR LA TECHNIQUE D'EPITAXIE PAR JETS MOLECULAIRES. LA CARACTERISATION STRUCTURALE DES ECHANTILLONS A ETE MENEE IN-SITU PAR RHEED ET AES ET EX-SITU PAR DIFFRACTION X, EXAFS DE SURFACE ET MICROSCOPIE ELECTRONIQUE. LES RESULTATS OBTENUS PAR CES DIFFERENTES TECHNIQUES METTENT EN EVIDENCE LA BONNE QUALITE CRISTALLINE DES SUPER-RESEAUX FE/AG ET MONTRENT L'ABSENCE D'INTERDIFFUSION SIGNIFICATIVE AUX INTERFACES. DANS UNE DEUXIEME PARTIE, NOUS ABORDONS L'ETUDE DE DEUX PROPRIETES SPECIFIQUES DES MULTICOUCHES MAGNETIQUES: LE COUPLAGE D'ECHANGE ENTRE COUCHES MAGNETIQUES ET LA MAGNETORESISTANCE GEANTE. NOUS MONTRONS QUE LA MAGNETORESISTANCE GEANTE QUI APPARAIT DANS LES SUPER-RESEAUX FE/CR EST TRES SENSIBLE A L'ETAT DES INTERFACES. PAR UN TRAITEMENT THERMIQUE OU PAR UN MELANGE INTENTIONNEL PENDANT LA CROISSANCE, NOUS AVONS PU AUGMENTER LA MAGNETORESISTANCE ET METTRE EN EVIDENCE L'EXISTENCE D'UN OPTIMUM DE RUGOSITE AUX INTERFACES. NOUS AVONS AUSSI EFFECTUE UNE ETUDE PRELIMINAIRE DE LA FORTE VARIATION EN TEMPERATURE DE LA MAGNETORESISTANCE GEANTE DES SUPER-RESEAUX FE/CR. UN MODELE PHENOMENOLOGIQUE, BASE SUR LES COLLISIONS ELECTRONS-MAGNONS, PERMET D'EXPLIQUER CETTE DEPENDANCE EN TEMPERATURE. NOUS METTONS EN EVIDENCE LE PHENOMENE DE MAGNETORESISTANCE GEANTE DANS DEUX NOUVEAUX SYSTEMES QUI SONT CO/CU ET FE/CU. DANS LE SYSTEME CO/CU, UNE MAGNETORESISTANCE DE L'ORDRE DE 50% EST OBSERVEE A TEMPERATURE AMBIANTE, PROMETTEUSE POUR LES APPLICATIONS. DE PLUS, NOUS AVONS OBSERVE DANS CO/CU ET FE/CU, DES OSCILLATIONS DU COUPLAGE D'ECHANGE A TRAVERS LE CUIVRE. CES OSCILLATIONS ONT UNE PERIODE VOISINE DE 12 A DANS LES DEUX SYSTEMES MAIS SONT EN OPPOSITION DE PHASE

Download or read book Fourth European Symposium on Martensitic Transformations written by and published by . This book was released on 1998 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metals Abstracts written by and published by . This book was released on 1997 with total page 782 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermodynamics Diffusion and the Kirkendall Effect in Solids written by Aloke Paul and published by Springer. This book was released on 2014-07-16 with total page 543 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book basic and some more advanced thermodynamics and phase as well as stability diagrams relevant for diffusion studies are introduced. Following, Fick’s laws of diffusion, atomic mechanisms, interdiffusion, intrinsic diffusion, tracer diffusion and the Kirkendall effect are discussed. Short circuit diffusion is explained in detail with an emphasis on grain boundary diffusion. Recent advances in the area of interdiffusion will be introduced. Interdiffusion in multi-component systems is also explained. Many practical examples will be given, such that researches working in this area can learn the practical evaluation of various diffusion parameters from experimental results. Large number of illustrations and experimental results are used to explain the subject. This book will be appealing for students, academicians, engineers and researchers in academic institutions, industry research and development laboratories.

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Download or read book Magnetism and Superconductivity written by Laurent-Patrick Levy and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt: This up-to-date work presents a modern vision of magnetism and superconductivity covering both microscopic and phenomenological aspects. The basic information is illustrated with the help of current research topics such as the quantum Hall effect or mesoscopic aspects of superconductivity.

Download or read book Magnetism and Synchrotron Radiation written by Eric Beaurepaire and published by Springer Science & Business Media. This book was released on 2010-03-12 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in the synthesis of new materials with often complex, nano-scaled structures require increasingly sophisticated experimental techniques that can probe the electronic states, the atomic magnetic moments and the magnetic microstructures responsible for the properties of these materials. At the same time, progress in synchrotron radiation techniques has ensured that these light sources remain a key tool of investigation, e.g. synchrotron radiation sources of the third generation are able to support magnetic imaging on a sub-micrometer scale. With the Fifth Mittelwihr School on Magnetism and Synchrotron Radiation the tradition of teaching the state-of-the-art on modern research developments continues and is expressed through the present set of extensive lectures provided in this volume. While primarily aimed at postgraduate students and newcomers to the field, this volume will also benefit researchers and lecturers actively working in the field.

Download or read book Statistical Applications in the Earth Sciences written by F. P. Agterberg and published by Energy, Mines and Resources Canada. This book was released on 1990 with total page 616 pages. Available in PDF, EPUB and Kindle. Book excerpt: Collection of papers presented at the Colloquium, covering the broad subject areas of spatial data integration, statistical analysis of geoscience data, and quantitative stratigraphy. Working Group reports are included as well.

Download or read book Multifunctional Oxide Heterostructures written by Evgeny Y. Tsymbal and published by OUP Oxford. This book was released on 2012-08-30 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is devoted to the rapidly developing field of oxide thin-films and heterostructures. Oxide materials combined with atomic-scale precision in a heterostructure exhibit an abundance of macroscopic physical properties involving the strong coupling between the electronic, spin, and structural degrees of freedom, and the interplay between magnetism, ferroelectricity, and conductivity. Recent advances in thin-film deposition and characterization techniques made possible the experimental realization of such oxide heterostructures, promising novel functionalities and device concepts. The book consists of chapters on some of the key innovations in the field over recent years, including strongly correlated oxide heterostructures, magnetoelectric coupling and multiferroic materials, thermoelectric phenomena, and two-dimensional electron gases at oxide interfaces. The book covers the core principles, describes experimental approaches to fabricate and characterize oxide heterostructures, demonstrates new functional properties of these materials, and provides an overview of novel applications.

Download or read book Electron Spin Resonance ESR Applications in Organic and Bioorganic Materials written by B. Catoire and published by Springer. This book was released on 1992-02-27 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Publication partially sponsored by MRT (French Ministry of Research and Technology."

Download or read book Handbook of Magnetic Materials written by K.H.J. Buschow and published by Gulf Professional Publishing. This book was released on 2001 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt: Volume 13 of the Handbook of Magnetic Materials, as the preceding volumes, has a dual purpose. As a textbook it is intended to be of assistance to those who wish to be introduced to a given topic in the field of magnetism without the need to read the vast amount of literature published. As a work of reference it is intended for scientists active in magnetism research. To this dual purpose, Volume 13 of the Handbook is composed of topical review articles written by leading authorities. In each of these articles an extensive description is given in graphical as well as in tabular form, much emphasis being placed on the discussion of the experimental material in the framework of physics, chemistry and material science. In Chapter 1 of this volume a general review of the experimental work on interlayer exchange coupling is presented along with a discussion of the current understanding of this field. There exists an extensive amount of scientific efforts devoted to 4f and 5f systems, including experimental and theoretical, as well as basic and applied research. Chapter 2 aims at reviewing a part of these efforts from the viewpoint of microscopic theory. Special attention is paid to the many new developments in the field. One of the intentions is to bring to the fore the darker areas of DFT theory applications. A review of novel experimental results and first-principle energy-band calculations of MOKE spectra will be presented in Chapter 3. Conventional co-operative phenomena, such as long-range order and elementary excitation, have realisations in nonmagnetic situations. This applies also to the phenomena of geometrical frustration. In Chapter 4 this topic is addressed by developing the basic principles underlying the magnetic phenomena.

Download or read book Physics of Magnetism and Magnetic Materials written by K.H.J Buschow and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book, the fundamentals of magnetism are treated, starting at an introductory level. The origin of magnetic moments, the response to an applied magnetic field, and the various interactions giving rise to different types of magnetic ordering in solids are presented and many examples are given. Crystalline-electric-field effects are treated at a level that is sufficient to provide the basic knowledge necessary in understanding the properties of materials in which these effects play a role. Itinerant-electron magnetism is presented on a similar basis. Particular attention has been given to magnetocrystalline magnetic anisotropy and the magnetocaloric effect. Also, the usual techniques for magnetic measurements are presented. About half of the book is devoted to magnetic materials and the properties that make them suitable for numerous applications. The state of the art is presented of permanent magnets, high-density recording materials, soft-magnetic materials, Invar alloys and magnetostrictive materials. Many references are given.

Download or read book Graphene written by Wonbong Choi and published by CRC Press. This book was released on 2016-04-19 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the late 20th century, graphene-a one-atom-thick planar sheet of sp2-bonded carbon atoms densely packed in a honeycomb crystal lattice-has garnered appreciable attention as a potential next-generation electronic material due to its exceptional properties. These properties include high current density, ballistic transport, chemical inertness,

Download or read book On Induction written by Michael 1791-1867 Faraday and published by Legare Street Press. This book was released on 2021-09-09 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work has been selected by scholars as being culturally important and is part of the knowledge base of civilization as we know it. This work is in the public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. To ensure a quality reading experience, this work has been proofread and republished using a format that seamlessly blends the original graphical elements with text in an easy-to-read typeface. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.

Download or read book Hall Effect Devices written by R.S. Popovic and published by CRC Press. This book was released on 2003-12-01 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second edition of a very popular 1991 book describing the physics and technology of semiconductor electronic devices exploiting the Hall effect. These are magnetic field sensitive devices such as Hall elements, magnetoresistors, and magnetotransistors. Hall effect devices are commonly used as magnetic field sensors and as means for char

Download or read book Novel Refractory Semiconductors written by David Emin and published by . This book was released on 1987 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Complex Behaviour of Glassy Systems written by Miguel Rubi and published by . This book was released on 2014-01-15 with total page 484 pages. Available in PDF, EPUB and Kindle. Book excerpt: