1,721,150 research outputs found
NMR evidence for the influence of CuO chains ordering on the opening of the spin-gap in YBa2Cu3O6+x
No full textMOTION OF FLUX LINES UNDER AN APPLIED LORENTZ FORCE AND RF PENETRATION FROM Y-89 AND CU-63 NMR IN YBA2CU3O7-DELTA
No full text
Structure of Matter: An Introductory Course with Problems and Solutions
No full textThis is the second edition of this textbook, the original of which was published in 2007. Initial undergraduate studies in physics are usually in an organized format devoted to elementary aspects, which is then followed by advanced programmes in specialized fields. A difficult task is to provide a formative introduction in the early period, suitable as a base for courses more complex, thus bridging the wide gap between elementary physics and topics pertaining to research activities. This textbook remains an endeavour toward that goal, and is based on a mixture of simplified institutional theory and solved problems. In this way, the hope is to provide physical insight, basic knowledge and motivation, without impeding advanced learning. The choice has been to limit the focus to key concepts and to those aspects most typical of atoms, molecules and compounds, by looking at the basic, structural components, without paying detailed attention to the properties possessed by them. Problems are intertwined with formal presentations of the arguments presented, designed as an intrinsic part of the pathway by which the student should move in order to grasp the key concepts. The purpose of the blend of intuition–theory exercises in this text is to favour the acquisition of basic knowledge in the wide and wonderful field of condensed matter, with an emphasis on how phenomenological properties originate from the microscopic, quantum features of nature. The text has been completely revised. The subject index has been considerably extended and some figures amended in order to help the reader to better perceive the physical issues. However, the general purpose of this text remains the same as in the first edition
A short introduction to Nuclear Magnetic Resonance
No full textThe aim of this manuscript is to introduce some of the physical principles involved in nuclear magnetic resonance (NMR) spectroscopy, in order to allow a better understanding of the following parts of the book. The foundations of NMR have been settled decades ago and its basic aspects are described in
detail in several text books where also a complete formal derivation can be found. Although in some parts of this manuscript continuous wave (CW) NMR spectroscopy will be recalled we shall be dealing most of the time just with pulsed NMR technique
Structure of Matter: An Introductory Course with Problems and Solutions
No full textThis is the second edition of this textbook, the original of which was published in 2007. Initial undergraduate studies in physics are usually in an organized format devoted to elementary aspects, which is then followed by advanced programmes in specialized fields. A difficult task is to provide a formative introduction in the early period, suitable as a base for courses more complex, thus bridging the wide gap between elementary physics and topics pertaining to research activities. This textbook remains an endeavour toward that goal, and is based on a mixture of simplified institutional theory and solved problems. In this way, the hope is to provide physical insight, basic knowledge and motivation, without impeding advanced learning. The choice has been to limit the focus to key concepts and to those aspects most typical of atoms, molecules and compounds, by looking at the basic, structural components, without paying detailed attention to the properties possessed by them. Problems are intertwined with formal presentations of the arguments presented, designed as an intrinsic part of the pathway by which the student should move in order to grasp the key concepts. The text has been completely revised. The subject index has been considerably extended and some figures amended in order to help the reader to better perceive the physical issues. However, the general purpose of this text remains the same as in the first edition
NMR-MRI, muSR and Mossbauer Spectroscopies in Molecular Magnets
No full textThis book is a collection of scientific articles on the basic aspects of nuclear magnetic resonance (NMR), muon spin rotation (μSR) and M ̈ossbauer spectroscopies, applied to the study of molecular magnets and to related systems, such as low-dimensional magnets and contrast agents for magnetic resonance
imaging (MRI). These articles gather, to a certain extent, the lecture notes presented by the authors at the Training School on NMR-MRI, μSR and M ̈ossbauer Techniques, held in Pavia from the 17th to the 30th of September 2006.
The motivation for the School and for the publication of this book originates from the growing interest of a broad scientific community to the field of molecular magnetism where the aforementioned techniques play a key role.
Nowadays several groups of physicists, of chemists and some groups of biologists work in this field in order to unravel the fundamental physical aspects of molecular magnets which are of interest for their future applicability as storage units, in quantum computation, in hybrid superconducting-magnetic
systems or as contrast agents, for example. Nevertheless, the use and the knowledge of NMR-MRI, μSR and M ̈ossbauer spectroscopies is still limited to a small scientific community. The purpose of the School and of the book was to introduce these techniques to a broader scientific community working on molecular magnets and related systems. In particular, to give the basic principles of each technique, to show which information is derived, for example, from the spectra, from the muon depolarization curves or from the relaxation rates, and how it is complementary to the one obtained by other techniques. Moreover, it will be shown how from the experimental results derived by these techniques one can tailor the properties of molecular magnets and nanoparticles which, in turn, can be used as contrast agents for MRI. The book is addressed to graduate and senior researchers working on molecular magnets or closely related areas, having a background on quantum mechanics. It is divided into three main parts, each one dedicated to a
different spectroscopy. The first chapter of each part is a short tutorial introduction to each one of the spectroscopies. Since an exhaustive introduction is out of the aim of this book, reference is properly made to text books and to web sites which allow a deeper understanding of the basic principles underlaying
these techniques. This introductory chapter is followed by more specialized ones giving an overview on recent results obtained by NMR, μSR and M ̈ossbauer spectroscopies in molecular magnets and in strictly related areas. Two chapters of the first part are dedicated to MRI and to the investigation of contrast agents suitable for applications in MRI
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