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Author : Gheorghe Taran
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (127 download)
Download or read book Quantum Effects in Molecular Magnets written by Gheorghe Taran and published by . This book was released on 2021 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Juan Bartolomé
Publisher : Springer Science & Business Media
ISBN 13 : 3642406092
Total Pages : 401 pages
Book Rating : 4.6/5 (424 download)
Download or read book Molecular Magnets written by Juan Bartolomé and published by Springer Science & Business Media. This book was released on 2013-10-17 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides an overview of the physical phenomena discovered in magnetic molecular materials over the last 20 years. It is written by leading scientists having made the most important contributions to this active area of research. The main topics of this book are the principles of quantum tunneling and quantum coherence of single-molecule magnets (SMMs), phenomena which go beyond the physics of individual molecules, such as the collective behavior of arrays of SMMs, the physics of one-dimensional single–chain magnets and magnetism of SMMs grafted on substrates. The potential applications of these physical phenomena to classical and quantum information, communication technologies, and the emerging fields of molecular spintronics and magnetic refrigeration are stressed. The book is written for graduate students, researchers and non-experts in this field of research.
Author : Ulrich Schollwock
Publisher :
ISBN 13 : 9783662144565
Total Pages : 500 pages
Book Rating : 4.1/5 (445 download)
Download or read book Quantum Magnetism written by Ulrich Schollwock and published by . This book was released on 2014-01-15 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dante Gatteschi
Publisher : OUP Oxford
ISBN 13 : 0191620858
Total Pages : 416 pages
Book Rating : 4.1/5 (916 download)
Download or read book Molecular Nanomagnets written by Dante Gatteschi and published by OUP Oxford. This book was released on 2011-04-14 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomagnetism is a rapidly expanding area of research which appears to be able to provide novel applications. Magnetic molecules are at the very bottom of the possible size of nanomagnets and they provide a unique opportunity to observe the coexistence of classical and quantum properties. The discovery in the early 90's that a cluster comprising twelve manganese ions shows hysteresis of molecular origin, and later proved evidence of quantum effects, opened a new research area which is still flourishing through the collaboration of chemists and physicists. This book is the first attempt to cover in detail the new area of molecular nanomagnetism, for which no other book is available. In fact research and review articles, and book chapters are the only tools available for newcomers and the experts in the field. It is written by the chemists originators and by a theorist who has been one of the protagonists of the development of the field, and is explicitly addressed to an audience of chemists and physicists, aiming to use a language suitable for the two communities.
Author : Wolfgang Linert
Publisher : Springer Science & Business Media
ISBN 13 : 3709160189
Total Pages : 222 pages
Book Rating : 4.7/5 (91 download)
Download or read book Molecular Magnets Recent Highlights written by Wolfgang Linert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 222 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book deals with recent scientific highlights on molecular magnetism in Europe. Molecular magnetism is a new interdisciplinary discipline gathering together chemists and physicists, theoreticians and experimentalists. The book intends to provide the reader with documented answers to many current questions: How can chemists use soft conditions to transform molecules in light and transparent magnets. How does a molecular system can behave as a single molecule magnet. How to combine several functions in the same molecular system. How light can be used to switch molecular magnetic properties. How can molecules be used for ultimate high density information storage or in quantum computing. What kind of methods do physicists develop and use to explore these new properties of matter. What kind of concepts and calculations can be provided for theoreticians to design new objects and to better understand the field and to enlarge its exciting developments.
Author : Ulrich Schollwöck
Publisher : Springer
ISBN 13 : 3540400664
Total Pages : 488 pages
Book Rating : 4.5/5 (44 download)
Download or read book Quantum Magnetism written by Ulrich Schollwöck and published by Springer. This book was released on 2008-05-14 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt: Closing a gap in the literature, this volume is intended both as an introductory text at postgraduate level and as a modern, comprehensive reference for researchers in the field. Provides a full working description of the main fundamental tools in the theorists toolbox which have proven themselves on the field of quantum magnetism in recent years. Concludes by focusing on the most important cuurent materials form an experimental viewpoint, thus linking back to the initial theoretical concepts.
Author : Maher Yazback
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (139 download)
Download or read book Computational Study of Magnetoelectric Effects in Quantum Molecular Magnets written by Maher Yazback and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ability to control the state of magnetic systems through electronic means is a promising challenge to those in the field of electronics and nanotechnology. The magnetoelectric effect, first predicted in 1894, is a coupling between the magnetization of a material and an electric field or the polarization of a material and a magnetic field. A lot of progress has been made since its discovery but a limited microscopic understanding of the underlying mechanisms involved, and a general weakness of the effect, makes the search for and study of these systems difficult. Recent studies have focused on considering such behaviour in low-dimensional materials or molecules. The small size and tunability of these systems makes them a worthwhile testing ground to push the limits of scale and functionality for technical applications. First-principle calculations using density functional theory (DFT) provides a computationally efficient method to characterize the ground state properties of potential magnetoelectric materials and allows the building of models that could potentially anticipate the presence and strength of the effect. In this work, we use these methods to study low-dimensional magnetic systems, one a quasi-1D molecular crystal and later, a set of single-molecule magnets.
Author : Pietro Carretta
Publisher : Springer Science & Business Media
ISBN 13 : 8847005329
Total Pages : 294 pages
Book Rating : 4.8/5 (47 download)
Download or read book NMR-MRI, μSR and Mössbauer Spectroscopies in Molecular Magnets written by Pietro Carretta and published by Springer Science & Business Media. This book was released on 2007-12-15 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book an extensive overview on the results obtained during the last decade and on recent achievements in the study of molecular magnets by means of Nuclear Magnetic Resonance, Muon Spin Rotation, Magnetic Resonance Imaging and Mossbauer techniques is presented. The aim is to introduce the reader to these techniques and to give a general background on their application to molecular spin systems.
Author : Stefan Thiele
Publisher : Springer
ISBN 13 : 3319240587
Total Pages : 167 pages
Book Rating : 4.3/5 (192 download)
Download or read book Read-Out and Coherent Manipulation of an Isolated Nuclear Spin written by Stefan Thiele and published by Springer. This book was released on 2015-11-26 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis sheds new light on the worldwide first electrical manipulation of a single nuclear spin. Over the last four decades, the size of a bit, the smallest logical unit in a computer, has decreased by more than two orders of magnitude and will soon reach a limit where quantum phenomena become important. Inspired by the power of quantum mechanics, researchers have already identified pure quantum systems, having, analog to a classical bit, two controllable and readable states. In this regard, the inherent spin of electrons or nuclei with its two eigenstates, spin up and spin down, is a promising candidate. Using expertise in the field of single-molecule magnets, the author developed a molecular transistor, which allows quantum information to be written onto a single nuclear spin by means of an electric field only, and, in addition, enables the electronic read-out of this quantum state. This novel approach opens a path to addressing and manipulating individual nuclear spins within a very confined space (a single molecule), at high speed. Thus, the author was able to show that single molecule magnets are promising candidates for quantum information processing, which is triggering a new field of research towards molecular quantum electronics.
Author : Gopalan Rajaraman
Publisher : Springer Nature
ISBN 13 : 3031310381
Total Pages : 507 pages
Book Rating : 4.0/5 (313 download)
Download or read book Computational Modelling of Molecular Nanomagnets written by Gopalan Rajaraman and published by Springer Nature. This book was released on with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Christopher Craig Beedle
Publisher :
ISBN 13 : 9781124330099
Total Pages : 890 pages
Book Rating : 4.3/5 (3 download)
Download or read book Quantum Dynamics and Magneto-structural Correlations in Molecule Based Magnets written by Christopher Craig Beedle and published by . This book was released on 2010 with total page 890 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis and study of magnetic nanostructures is of both intense scientific and technological interest. A single-molecule magnet (SMM) is a molecular nanomagnet that can be magnetized as a result of having a large spin ground state that experiences appreciable magnetoanisotropy, which leads to a thermodynamic barrier between "spin-up" and "spin-down" orientations. The monodisperse nature (same size, shape and anisotropy) of SMMs permits detailed studies of the magnetization and quantum dynamics of nanomagnets. The discovery of SMMs permitted, for the first time, detailed study of quantum effects associated with nanomagnets. The magnetic and quantum properties of these complexes is heavily dictated by molecular and crystal symmetry, and paramount to employing these systems as devices is a need to thoroughly understand and control environmental factors that govern their magnetization and quantum dynamics. To some extent this can be achieved by changing or eliminating co-crystallized solvate molecules and interchanging coordinated peripheral ligands. Magnetic and thermodynamic studies were carried out on a high symmetry system that exhibits a large spin ground state (S =51/2), a preferred orientation in an applied magnetic field, and slow magnetization relaxation dynamics. Strong competing magnetic exchange coupling between paramagnetic copper and manganese ions, in conjunction with high symmetry, gives rise to appreciable spin-frustration and geometric-frustration. These correlated effects lead to slow magnetization relaxation behavior. Detailed magnetization and thermodynamic studies were performed on a series of tetranuclear nickel complexes that exhibit fast magnetization tunneling and magnetic ordering. Magnetic ordering is a collective process that should drastically suppress or terminate quantum tunneling processes. It is revealed that even in an ordered state, the molecules within the crystal lattice act as single domains, thus, molecules quickly switch between magnetic ordering and single-domain quantum tunneling. A series/family of multifunctional tetranuclear manganese SMMs (magnetic and photoluminescent) were synthesized that systematically differ in co-crystallized solvate molecules and peripheral organic ligands to study magneto-structural correlation effects and quantum tunneling of magnetization. The goal is to couple emissive excited states to the magnetic moment of the SMM, which may allow, for the first time, detailed study of quantum dynamics on a 10−9-10−12s time scale.
Author : Peter Day
Publisher : Royal Society of Chemistry
ISBN 13 : 1847551394
Total Pages : 333 pages
Book Rating : 4.8/5 (475 download)
Download or read book Metal-Organic and Organic Molecular Magnets written by Peter Day and published by Royal Society of Chemistry. This book was released on 2007-10-31 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditionally, magnetic materials have been metals or, if inorganic compounds such as oxides, of continuous lattice type. However, in recent years chemists have synthesized increasing numbers of crystalline solids based on molecular building blocks in the form of coordination and organometallic complexes or purely organic molecules, which exhibit spontaneous magnetization. In striking contrast to conventional magnets, these materials are made from solutions close to room temperature rather than by metallurgical or ceramic methods. This book, which originates from contributions to a Discussion Meeting of The Royal Society of London, brings together many of the leading international practitioners in the field, who survey their own recent work and place it in the context of the wider fields of magnetism and supramolecular chemistry. All aspects of molecular-based magnets are addressed, including synthesis, structure-property relations and physical properties. Contents include details of the characterization of the first purely organic ferromagnet, the synthesis of high coercivity materials and a unique description of new materials with Curie temperatures well above ambient. A coherent survey of this rapidly developing field for the more general reader, Metal-Organic and Organic Molecular Magnets will also be welcomed by researchers and lecturers in materials science and inorganic or solid state chemistry.
Author : Richard Winpenny
Publisher : World Scientific
ISBN 13 : 9814322946
Total Pages : 312 pages
Book Rating : 4.8/5 (143 download)
Download or read book Molecular Cluster Magnets written by Richard Winpenny and published by World Scientific. This book was released on 2012 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: This work covers new developments in the field of molecular nanomagnetism, complementing previous books in this area (for example the volume by Gatteschi, Sessoli and Villain on Single Molecule Magnets). The book is written by experts in the field and is intended as a compilation of critical reviews of new areas rather than a comprehensive text.
Author : Joel S. Miller
Publisher : John Wiley & Sons
ISBN 13 : 3527604502
Total Pages : 395 pages
Book Rating : 4.5/5 (276 download)
Download or read book Magnetism written by Joel S. Miller and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: Combining the contemporary knowledge from widely scattered sources, this is a much-needed and comprehensive overview of the field. In maintaining a balance between theory and experiment, the book guides both advanced students and specialists to this research area. Topical reviews written by the foremost scientists explain recent trends and advances, focusing on the correlations between electronic structure and magnetic properties. The book spans recent trends in magnetism for molecules -- as well as inorganic-based materials, with an emphasis on new phenomena being explored from both experimental and theoretical viewpoints with the aim of understanding magnetism on the atomic scale. The volume helps readers evaluate their own experimental observations and serves as a basis for the design of new magnetic materials. Topics covered include: * Metallocenium Salts of Radical Anion Bis-(dichalcogenate) metalates * Chiral Molecule-Based Magnets * Cooperative Magnetic Behavior in Metal-Dicyanamide Complexes * Lanthanide Ions in Molecular Exchange Coupled Systems * Monte Carlo Simulation * Metallocene-Based Magnets * Magnetic Nanoporous Molecular Materials A unique reference work, indispensable for everyone concerned with the phenomena of magnetism.
Author : Kali Das Sen
Publisher : World Scientific
ISBN 13 : 9812775706
Total Pages : 1882 pages
Book Rating : 4.8/5 (127 download)
Download or read book Reviews of Modern Quantum Chemistry written by Kali Das Sen and published by World Scientific. This book was released on 2002 with total page 1882 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book collects together stateOCoofOCotheOCoart reviews of diverse topics covering almost all the major areas of modern quantum chemistry. The current focus in the discipline of chemistry OCo synthesis, structure, reactivity and dynamics OCo is mainly on control . A variety of essential computational tools at the disposal of chemists have emerged from recent studies in quantum chemistry. The acceptance and application of these tools in the interfacial disciplines of the life and physical sciences continue to grow. The new era of modern quantum chemistry throws up promising potentialities for further research. Reviews of Modern Quantum Chemistry is a joint endeavor, in which renowned scientists from leading universities and research laboratories spanning 22 countries present 59 inOCodepth reviews. Along with a personal introduction written by Professor Walter Kohn, Nobel laureate (Chemistry, 1998), the articles celebrate the scientific contributions of Professor Robert G Parr on the occasion of his 80th birthday. List of Contributors: W Kohn, M Levy, R Pariser, B R Judd, E Lo, B N Plakhutin, A Savin, P Politzer, P Lane, J S Murray, A J Thakkar, S R Gadre, R F Nalewajski, K Jug, M Randic, G Del Re, U Kaldor, E Eliav, A Landau, M Ehara, M Ishida, K Toyota, H Nakatsuji, G Maroulis, A M Mebel, S Mahapatra, R CarbOCoDorca, u Nagy, I A Howard, N H March, SOCoB Liu, R G Pearson, N Watanabe, S TenOCono, S Iwata, Y Udagawa, E Valderrama, X Fradera, I Silanes, J M Ugalde, R J Boyd, E V Ludea, V V Karasiev, L Massa, T Tsuneda, K Hirao, J-M Tao, J P Perdew, O V Gritsenko, M Grning, E J Baerends, F Aparicio, J Garza, A Cedillo, M Galvin, R Vargas, E Engel, A HAck, R N Schmid, R M Dreizler, J Poater, M Sola, M Duran, J Robles, X Fradera, P K Chattaraj, A Poddar, B Maiti, A Cedillo, S Guti(r)rrezOCoOliva, P Jaque, A ToroOCoLabb(r), H Chermette, P Boulet, S Portmann, P Fuentealba, R Contreras, P Geerlings, F De Proft, R Balawender, D P Chong, A Vela, G Merino, F Kootstra, P L de Boeij, R van Leeuwen, J G Snijders, N T Maitra, K Burke, H Appel, E K U Gross, M K Harbola, H F Hameka, C A Daul, I Ciofini, A Bencini, S K Ghosh, A Tachibana, J M CabreraOCoTrujillo, F Tenorio, O Mayorga, M Cases, V Kumar, Y Kawazoe, A M KAster, P Calaminici, Z Gmez, U Reveles, J A Alonso, L M Molina, M J Lpez, F Dugue, A Maanes, C A Fahlstrom, J A Nichols, D A Dixon, P A Derosa, A G Zacarias, J M Seminario, D G Kanhere, A Vichare, S A Blundell, ZOCoY Lu, HOCoY Liu, M Elstner, WOCoT Yang, J Muoz, X Fradera, M Orozco, F J Luque, P Tarakeshwar, H M Lee, K S Kim, M Valiev, E J Bylaska, A Gramada, J H Weare, J Brickmann, M Keil, T E Exner, M Hoffmann & J Rychlewski. Contents: Volume I: Applications of the Automorphisms of SO(8) to the Atomic f Shell (B R Judd & E Lo); Probability Distributions and Valence Shells in Atoms (A Savin); Information Theoretical Approaches to Quantum Chemistry (S R Gadre); Quantum Chemical Justification for Clar''s Valence Structures (M Randic); Functional Expansion Approach in Density Functional Theory (S-B Liu); Normconserving Pseudopotentials for the Exact Exchange Functional (E Engel et al.); Volume II: Chemical Reactivity and Dynamics within a Density-based Quantum Mechanical Framework (P K Chattaraj et al.); Fukui Functions and Local Softness (H Chermette et al.); The Nuclear Fukui Function (P Geerlings et al.); Causality in Time-Dependent Density-Functional Theory (M K Harbola); Theoretical Studies of Molecular Magnetism (H F Hameka); Melting in Finite-Sized Systems (D G Kanhere et al.); Density Functional Theory (DFT) and Drug Design (M Hoffmann & J Rychlewski); and other papers. Readership: Researchers and academics in computational, physical, fullerene, industrial, polymer, solid state and theoretical/quantum chemistry; nanoscience, superconductivity & magnetic materials, surface science; atomic, computational and condensed matter physics; and thermodynamics."
Author : Maria Bałanda
Publisher : MDPI
ISBN 13 : 3038977101
Total Pages : 166 pages
Book Rating : 4.0/5 (389 download)
Download or read book Molecular Magnets written by Maria Bałanda and published by MDPI. This book was released on 2019-03-19 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: Molecular magnets show many properties not met in conventional metallic magnetic materials, i.e. low density, transparency to electromagnetic radiation, sensitivity to external stimuli such as light, pressure, temperature, chemical modification or magnetic/electric fields, and others. They can serve as “functional” materials in sensors of different types or be applied in high-density magnetic storage or nanoscale devices. Research into molecule-based materials became more intense at the end of the 20th century and is now an important branch of modern science. The articles in this Special Issue, written by physicists and chemists, reflect the current work on molecular magnets being carried out in several research centers. Theoretical papers in the issue concern the influence of spin anisotropy in the low dimensional lattice of the resulting type of magnet, as well as thermodynamics and magnetic excitations in spin trimers. The impact of external pressure on structural and magnetic properties and its underlying mechanisms is described using the example of Prussian blue analogue data. The other functionality discussed is the magnetocaloric effect, investigated in coordination polymers and high spin clusters. In this issue, new molecular magnets are presented: (i) ferromagnetic high-spin [Mn6] single-molecule magnets, (ii) solvatomagnetic compounds changing their structure and magnetism dependent on water content, and (iii) a family of purely organic magnetic materials. Finally, an advanced calorimetric study of anisotropy in magnetic molecular superconductors is reviewed.
Author :
Publisher :
ISBN 13 :
Total Pages : 342 pages
Book Rating : 4.:/5 (3 download)
Download or read book Environmental Health Perspectives written by and published by . This book was released on 1993 with total page 342 pages. Available in PDF, EPUB and Kindle. Book excerpt:
