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Proprietes De Letat Normal Des Cuprates Sous Dopes Sous Champ Magnetique Intense
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Book Synopsis Étude à fort champ magnétique du système à fermions lourds URu2Si2 by : Gernot Werner Scheerer
Download or read book Étude à fort champ magnétique du système à fermions lourds URu2Si2 written by Gernot Werner Scheerer and published by . This book was released on 2013 with total page 169 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les composés à fermions lourds, qui sont à base de terres rares comme le cérium et l'ytterbium ou d'actinides comme l'uranium, sont connus pour leurs propriétés extraordinaires à basse température. Leur physique est gouvernée par l'hybridation des électrons f avec des électrons de conduction, ce qui mène à la formation de quasi-particules avec de très grandes masses effectives. URu2Si2 occupe une place particulière dans la famille des fermions lourds. Une transition de phase du second ordre à la température T0 = 17.5 K a été observée par de nombreuses techniques expérimentales. Malgré des propositions théoriques multiples, aucun consensus n'existe concernant le paramètre d'ordre de la phase - dite à ordre caché - qui se développe sous T0. Lorsqu'on le soumet à des champs magnétiques intenses, URu2Si2 a par ailleurs un comportement unique : une cascade de trois transitions du premier ordre entre 35 et 39 T mène le système de son état paramagnétique à un état polarisé paramagnétique à fort champ. Ce travail a consisté en l'investigation systématique des propriétés magnétiques et électroniques d'échantillons monocristallins de très haute qualité d' URu2Si2 dans des champs magnétiques intenses allant jusqu'à 80 T, et des températures descendant jusqu'à 100 mK. Des expériences d'aimantation et de magnétorésistivité ont été faites en champ magnétique pulsé non destructif au Laboratoire National des Champs Magnétiques Intenses de Toulouse (LNCMI-T). Le diagramme de phase champ magnétique-température de URu2Si2 a été étudié la première fois sur les gammes étendues de champs magnétiques H||c allant jusqu'à 60 T et de températures allant jusqu'à 80 K. Il indique que la domaine critique [35 T-39 T] est initié par la destabilisation d'un " crossover ", dont la température caractéristique atteint 40-50 K à champ nul. Il est démontré que ce crossover, qui résulte probablement des corrélations inter-site, est aussi un précurseur de la phase à ordre caché. Une étude de la magnétorésistivité pour différentes orientations du champ magnétique dans les plans (a,a) and (a,c) a permis d'établir la dépendance en angle du diagramme de phase. Des mesures de l'aimantation du composé dopé en rhodium U(Ru0.96Rh0.04)2Si2 révèlent un diagramme de phase " simplifié ", où la phase à ordre caché a disparu et le domaine critique a été remplace par une phase intermédiaire entre 26 et 37 T. La magnetoresistivité à très basse température se révèle être fortement dépendente de la qualité des échantillons et est la signature des propriétés orbitales d'URu2Si2. Une dépendance exceptionnellement intense de la magnétorésistivité en fonction de la température confirme que la surface de Fermi est reconstruite à T0. Des anomalies dans la magnetoresistivité à fort champ magnétique H||c suggèrent que la surface de Fermi est modifiée à l'intérieur de la phase à ordre caché. Des oscillations quantiques - effet Shubnikov-de Haas - sont observées dans la magnétorésistivité à très basse température pour une multitude d'orientations des échantillons dans le champ magnétique. Elles confirment qu'un champ magnétique H||c induit des reconstructions de la surface de Fermi dans la phase à ordre caché. Dans un champ magnétique H||a, des oscillations quantiques sont observées pour la première fois jusqu'à 80 T. Leur analyse a révélé une nouvelle branche de fréquence ? avec une faible masse effective. La dépendance en angle des fréquences Shubnikov-de Haas a été étudiée dans un champ magnétique allant jusqu'à 60 T, pour des champs appliqués dans les plans (a,a) et (a,c). Ce travail expérimental indique que le couplage entre le magnétisme des électrons f et les propriétés de la surface de Fermi joue un rôle important pour la physique du système à ordre caché URu2Si2.
Book Synopsis Theory of Quantum Liquids by : Philippe Nozieres
Download or read book Theory of Quantum Liquids written by Philippe Nozieres and published by Westview Press. This book was released on 1994-06-21 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: Originally published as two separate volumes, The Theory of Quantum Liquids is a classic text that attempts to describe the qualitative and unifying aspects of an extremely broad and diversified field. Volume I deals with ‘normal’ Fremi liquids, such as 3He and electrons in metals. Volume II consists of a detailed treatment of Bose condensation and liquid 4He, including the development of a Bose liquid theory and a microscopic basis for the two-fluid model, and the description of the elementary excitations of liquid HeII.
Book Synopsis Dictionnaire des termes de médecine by : Henry Eugène de Méric
Download or read book Dictionnaire des termes de médecine written by Henry Eugène de Méric and published by . This book was released on 1899 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Planetary Interiors by : William B. Hubbard
Download or read book Planetary Interiors written by William B. Hubbard and published by Van Nostrand Reinhold Company. This book was released on 1984 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis X-Ray and Neutron Reflectivity: Principles and Applications by : Jean Daillant
Download or read book X-Ray and Neutron Reflectivity: Principles and Applications written by Jean Daillant and published by Springer Science & Business Media. This book was released on 2003-07-01 with total page 347 pages. Available in PDF, EPUB and Kindle. Book excerpt: The reflection of and neutrons from surfaces has existed as an x-rays exp- imental for almost it is in the last technique fifty Nevertheless, only years. decade that these methods have become as of enormously popular probes This the surfaces and interfaces. to be due to of several appears convergence of intense different circumstances. These include the more n- availability be measured orders tron and sources that can over (so reflectivity x-ray many of and the much weaker surface diffuse can now also be magnitude scattering of thin films and studied in some the detail); growing importance multil- basic the realization of the ers in both and technology research; important which in the of surfaces and and role roughness plays properties interfaces; the of statistical models to characterize the of finally development topology its and its characterization from on roughness, dependence growth processes The of and to surface scattering experiments. ability x-rays neutro4s study four five orders of in scale of surfaces over to magnitude length regardless their and also their to ability probe environment, temperature, pressure, etc. , makes these the choice for buried interfaces often probes preferred obtaining information about the microstructure of often in statistical a global surfaces, the local This is manner to complementary imaging microscopy techniques, of such studies in the literature witnessed the veritable by explosion published the last few Thus these lectures will useful for over a resource years.
Book Synopsis Theory Of Quantum Liquids by : David Pines
Download or read book Theory Of Quantum Liquids written by David Pines and published by CRC Press. This book was released on 2018-03-09 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is concerned with a single group of quantum liquids, normal Fermi liqztids, discussing the nature of elementary excitations, the central concept of response functions. It is intended as a text for a graduate course in quantum statistical mechanics or low temperature theory.
Book Synopsis Physical Properties of Amorphous Materials by : David Adler
Download or read book Physical Properties of Amorphous Materials written by David Adler and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Institute for Amorphous Studies was founded in 1982 as the international center for the investigation of amorphous mate rials. It has since played an important role in promoting the und er standing of disordered matter in general. An Institute lecture series on "Fundamentals of Amorphous Materials and Devices" was held during 1982-83 with distinguished speakers from universities and industry. These events were free and open to the public ,and were attended by many representatives of the scientific community. The lectures themselves were highly successful inasmuch as they provided not only formal instruction but also an opportunity for vigorous and stimulating debate. That last element could not be captured within the pages of a book I but the lectures concentrated on the latest advances in the field I which is why their essential contents are he re reproduced in collective form. Together they constitute an interdisciplinary status report of the field. The speakers brought many different viewpoints and a variety of back ground experiences io bear on the problems involved I but though language and conventions vary I the essential unity of the concerns is very clear I as indeed are the ultimate benefits of the many-sided approach.
Book Synopsis Neutron Data Booklet by : A. J. Dianoux
Download or read book Neutron Data Booklet written by A. J. Dianoux and published by Old City Pub Incorporated. This book was released on 2003-01-01 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :Atomic Energy of Canada Limited Publisher :McGill-Queen's Press - MQUP ISBN 13 :9780773516014 Total Pages :466 pages Book Rating :4.5/5 (16 download)
Book Synopsis Canada Enters the Nuclear Age by : Atomic Energy of Canada Limited
Download or read book Canada Enters the Nuclear Age written by Atomic Energy of Canada Limited and published by McGill-Queen's Press - MQUP. This book was released on 1997 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The nuclear energy company has overseen the production of its own history, focusing on programs at its laboratories in Chalk River, Ontario, and Whiteshell, Manitoba between 1943 and 1985. The 16 scientists who wrote the narrative discuss the organization and operations of the laboratories, nuclear safety and radiation protection, radioisotopes, basic research, developing the CANDU reactor, managing the radioactive wastes, business development, and revenue generation. Canadian card order number: C97-900188-9. Annotation copyrighted by Book News, Inc., Portland, OR
Book Synopsis Time Machine Tales by : Paul J. Nahin
Download or read book Time Machine Tales written by Paul J. Nahin and published by Springer. This book was released on 2016-12-24 with total page 423 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a broad overview of time travel in science fiction, along with a detailed examination of the philosophical implications of time travel. The emphasis of this book is now on the philosophical and on science fiction, rather than on physics, as in the author's earlier books on the subject. In that spirit there are, for example, no Tech Notes filled with algebra, integrals, and differential equations, as there are in the first and second editions of TIME MACHINES. Writing about time travel is, today, a respectable business. It hasn’t always been so. After all, time travel, prima facie, appears to violate a fundamental law of nature; every effect has a cause, with the cause occurring before the effect. Time travel to the past, however, seems to allow, indeed to demand, backwards causation, with an effect (the time traveler emerging into the past as he exits from his time machine) occurring before its cause (the time traveler pushing the start button on his machine’s control panel to start his trip backward through time). Time Machine Tales includes new discussions of the advances by physicists and philosophers that have appeared since the publication of TIME MACHINES in 1999, examples of which are the chapters on time travel paradoxes. Those chapters have been brought up-to-date with the latest philosophical thinking on the paradoxes.
Book Synopsis Universal Themes of Bose-Einstein Condensation by : Nick P. Proukakis
Download or read book Universal Themes of Bose-Einstein Condensation written by Nick P. Proukakis and published by Cambridge University Press. This book was released on 2017-04-27 with total page 663 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering general theoretical concepts and the research to date, this book demonstrates that Bose-Einstein condensation is a truly universal phenomenon.
Book Synopsis Microscopic Simulation of Interfacial Phenomena in Solids and Liquids: Volume 492 by : Simon R. Philllpot
Download or read book Microscopic Simulation of Interfacial Phenomena in Solids and Liquids: Volume 492 written by Simon R. Philllpot and published by . This book was released on 1998-04-24 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt: The MRS Symposium Proceeding series is an internationally recognised reference suitable for researchers and practitioners.
Book Synopsis Optical Response of Nanostructures by : Kikuo Cho
Download or read book Optical Response of Nanostructures written by Kikuo Cho and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a theoretical description of linear and nonlinear optical responses of matter with special emphasis on the microscopic and ‘nonlocal’ nature of resonant response. It will have a tremendous influence on modern device techniques, as it deals with frontier research in response theory.
Download or read book Quantum Measurement written by Paul Busch and published by Springer. This book was released on 2016-08-23 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a book about the Hilbert space formulation of quantum mechanics and its measurement theory. It contains a synopsis of what became of the Mathematical Foundations of Quantum Mechanics since von Neumann’s classic treatise with this title. Fundamental non-classical features of quantum mechanics—indeterminacy and incompatibility of observables, unavoidable measurement disturbance, entanglement, nonlocality—are explicated and analysed using the tools of operational quantum theory. The book is divided into four parts: 1. Mathematics provides a systematic exposition of the Hilbert space and operator theoretic tools and relevant measure and integration theory leading to the Naimark and Stinespring dilation theorems; 2. Elements develops the basic concepts of quantum mechanics and measurement theory with a focus on the notion of approximate joint measurability; 3. Realisations offers in-depth studies of the fundamental observables of quantum mechanics and some of their measurement implementations; and 4. Foundations discusses a selection of foundational topics (quantum-classical contrast, Bell nonlocality, measurement limitations, measurement problem, operational axioms) from a measurement theoretic perspective. The book is addressed to physicists, mathematicians and philosophers of physics with an interest in the mathematical and conceptual foundations of quantum physics, specifically from the perspective of measurement theory.
Book Synopsis Precision Cosmology by : Bernard J. T. Jones
Download or read book Precision Cosmology written by Bernard J. T. Jones and published by Cambridge University Press. This book was released on 2017-04-20 with total page 1166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cosmology seeks to characterise our Universe in terms of models based on well-understood and tested physics. Today we know our Universe with a precision that once would have been unthinkable. This book develops the entire mathematical, physical and statistical framework within which this has been achieved. It tells the story of how we arrive at our profound conclusions, starting from the early twentieth century and following developments up to the latest data analysis of big astronomical datasets. It provides an enlightening description of the mathematical, physical and statistical basis for understanding and interpreting the results of key space- and ground-based data. Subjects covered include general relativity, cosmological models, the inhomogeneous Universe, physics of the cosmic background radiation, and methods and results of data analysis. Extensive online supplementary notes, exercises, teaching materials, and exercises in Python make this the perfect companion for researchers, teachers and students in physics, mathematics, and astrophysics.
Book Synopsis International Humanitarian Law and Terrorism by : Andrea Bianchi
Download or read book International Humanitarian Law and Terrorism written by Andrea Bianchi and published by Hart Publishing. This book was released on 2011-07-01 with total page 407 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book carefully and thoroughly analyses the legal questions raised by the phenomenon of terrorism, and past and recent efforts to fight it, from the perspective of international humanitarian law (IHL). The objective is to substantially contribute to a better understanding of the issues surrounding the content and applicability of IHL as it applies to terrorism as well as to analyse and contextualise the current debates on these controversial and critically important questions. While due heed is paid to doctrinal debates, particular emphasis is placed on the practice of social actors, particularly, although not exclusively, States. The analysis of their actual conduct as well as their expectations about the interpretation and application of the law is crucial to establishing an interpretive consensus on when and how IHL is relevant to regulate acts of terrorism. The approach of the book is analytical and discursive, rather than prescriptive. Thus the reader will find the relevant rules of IHL and other legal regimes as regards terrorism, but also the debates over their application, the contradictions in State practice and the impact these may have upon IHL's evolution and implementation. The aim is to provide legal practitioners, as well as those in military, political and academic circles, with a useful reference point. Hopefully the book will also prove useful to other readers who will find its content and easy-to-read style an encouragement to getting acquainted with a topical subject, traditionally thought to be reserved for legal specialists. This book was cited with approval by the US Court of Appeals in Salim Ahmed Hamdan v United States of America, 16th October 2012
Book Synopsis Cosmology of the Early Universe by : Lizhi Fang
Download or read book Cosmology of the Early Universe written by Lizhi Fang and published by . This book was released on 1984 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt:
