| Description |
1 online resource (xiii, 249 pages) : illustrations |
| Series |
NATO science for peace and security series. Series B, Physics and biophysics, 1871-465X |
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NATO Science for Peace and Security series. B, Physics and biophysics. 1871-465X
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| Contents |
A gentle introduction to the functional renormalization group : the Kondo effect in quantum dots / Sabine Andergassen, Tilman Enss, Christoph Karrasch and Volker Meden -- A simple view on the quantum Hall system -- Emil J. Bergholtz and Anders Karlhede -- Halfvortices in flat nanomagnets / Gia-Wei Chern, David Clarke, Hyun Youk and Oleg Tchernyshyov -- Spin structure and dynamical magnetic response of spin-orbital polarons in lightly doped cobaltates / M. Daghofer, P. Horsch and G. Khaliullin -- Quantum corrections to the Ising interactions in LiY[1-x] Ho[x]F₄ / A. Chin and P.R. Eastham -- Spin-orbital-lattice physics in Ca-based ruthenates / Mario Cuoco, Filomena Forte and Canio Noce -- Local moment approach to multi-orbital Anderson and Hubbard models / Anna Kauch and Krzysztof Byczuk -- High field level crossing studies on spin dimers in the low dimensional quantum spin system Na₂T₂(C₂O₂)₃(H₂O)₂ with T = Ni, Co, Fe, Mn / C. Mennerich, H.-H. Klauss, A.U.B. Wolter, S. Süllow, F.J. Litterst, C. Golze, R. Klingeler, V. Kataev, B. Büchner, M. Goiran, H. Rakoto, J.-M. Broto, O. Kataeva and D.J. Price -- Quantum nanomagnets and nuclear spins : an overview / Andrea Morello -- Quantum Dimer models and exotic orders / K.S. Raman, E. Fradkin, R. Moessner, S. Papanikolaou and S.L. Sondhi -- Imaging transverse electron focusing in semiconducting heterostructures with spin-orbit coupling / Andrés A. Reynoso, Gonzalo Usaj and C.A. Balseiro -- Spectroscopic analysis of finite size effects around a Kondo quantum dot / Pascal Simon and Denis Feinberg -- Effective Magnus force on a magnetic vortex / L.R. Thompson and P.C.E. Stamp -- Anisotropic exchange in spin chains / Dmitry Zakharov, Hans-Albrecht Krug von Nidda, Mikhail Eremin, Joachim Deisenhofer, Rushana Eremina and Alois Loidl -- A review of Bose-Einstein condensation in certain quantum magnets containing Cu and Ni / Vivien S. Zapf |
| Summary |
This book is based on some of the lectures during the Pacific Institute of Theoretical Physics (PITP) summer school on "Quantum Magnetism", held during June 2006 in Les Houches, in the French Alps. The school was funded jointly by NATO, the CNRS, and PITP, and entirely organized by PITP. Magnetism is a somewhat peculiar research field. It clearly has a quantum-mechanical basis - the microsopic exchange interactions arise entirely from the exclusion principle, in conjunction with respulsive interactions between electrons. And yet until recently the vast majority of magnetism researchers and users of magnetic phenomena around the world paid no attention to these quantum-mechanical roots. Thus, eg., the huge ($400 billion per annum) industry which manufactures hard discs, and other components in the information technology sector, depends entirely on room-temperature properties of magnets - yet at the macroscopic or mesoscopic scales of interest to this industry, room-temperature magnets behave entirely classically. This situation has now begun to change, and the quantum collective properties of magnetic systems, for so long of interest only to a few, have begun to move to centre stage. There are several reasons for this. One is the increasing use of low temperatures in industrial and applied research labs, and the recognition that the low-T properties of many new magnetic materials are of great potential use in future devices. Another is the emergence of nanoscience, and its offshoot nanotechnology, as an important new discipline - the majority of high-tech applications of nanotechnology so far envisaged will also be low-temperature ones. All this has meant that collective quantum phenomena, occurring at low T in quantum dots, magnetic molecules, and nanoscopic conductors, have suddenly become interesting to more than just pure physics researchers. The design of new magnetic quantum materials, of spin-based quantum devices in low-dimensional geometries, and quantum nanomagnetic systems, using either physical or chemical techniques, has now become the concern of many applied physicists and chemists. An interesting by-product of this broader interest in collective quantum spin phenomena has been the increasing focus, by applied physicists and even start-up companies, on some of the more exotic theoretical ideas current in quantum magnetism. These draw upon various branches of quantum field theory (including topological field theory, the theory of decoherence, and string theory), quantum computation, and upon older fields like spin glass theory and the theory of quantum phase transitions - all of which are fairly esoteric. Some of these ideas have found more application in cosmology or string theory than in condensed matter physics - so that their use in designing circuit arrays for quantum information processors, or spintronic devices, may seem disconcerting to some. Yet from another point of view it simply confirms the broadly unified nature of the principles and techniques used in theoretical physics. For the PITP/Les Houches school a number of topics of prime interest were selected, and these reflect the interests of a broad community. They were as follows: - MAGNETISM at the MICROSCOPIC SCALE - EXOTIC ORDER in QUANTUM MAGNETS - DISORDERED MAGNETS - QUANTUM NANOMAGNETISM - LARGE-SCALE QUANTUM PHENOMENA IN MAGNETS All of these fields are evolving rapidly - as this volume was going to press, new discoveries were being made on graphene and on the behaviour of dipolar quantum spin glasses, and physicists were digesting the discovery of room-temperature Bose-Einstein condensation of magnons in YIG films. However it is clear that the questions, issues, and techniques in these areas will be of central interest for many years to come |
| Notes |
"Proceedings of the NATO Advanced Study Study Institute on Quantum Magnetism, Les Houches, France, 6-23 June, 2006"--Title page verso |
| Bibliography |
Includes bibliographical references |
| Notes |
Print version record |
| Subject |
Magnetism.
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Quantum theory.
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Quantum Theory
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magnetism.
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Physique.
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Magnetism
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Quantum theory
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| Genre/Form |
proceedings (reports)
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Conference papers and proceedings
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Conference papers and proceedings.
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Actes de congrès.
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| Form |
Electronic book
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| Author |
Barbara, Bernard.
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| ISBN |
9781402085123 |
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1402085125 |
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