Theory Of The Nuclear Magnetic 1 T1 Relaxation Rate In Conventional And Unconventional Magnets

Author : Andrew Smerald
Publisher : Springer Science & Business Media
ISBN 13 : 3319004344
Total Pages : 173 pages
Book Rating : 4.41/5 ( download)

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Download or read book Theory of the Nuclear Magnetic 1/T1 Relaxation Rate in Conventional and Unconventional Magnets written by Andrew Smerald and published by Springer Science & Business Media. This book was released on 2013-08-13 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: One of the best ways to "lift the lid" on what is happening inside a given material is to study it using nuclear magnetic resonance (NMR). Of particular interest are NMR 1/T1 relaxation rates, which measure how fast energy stored in magnetic nuclei is transferred to surrounding electrons. This thesis develops a detailed, quantitative theory of NMR 1/T1 relaxation rates, and shows for the first time how they could be used to measure the speed at which energy travels in a wide range of magnetic materials. This theory is used to make predictions for"Quantum Spin Nematics", an exotic form of quantum order analogous to a liquid crystal. In order to do so, it is first necessary to unravel how spin nematics transport energy. This thesis proposes a new way to do this, based on the description of quarks in high-energy physics. Experiments to test the ideas presented are now underway in laboratories across the world.

Author : Vladimir I. Bakhmutov
Publisher : CRC Press
ISBN 13 : 148226272X
Total Pages : 360 pages
Book Rating : 4.28/5 ( download)

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Download or read book NMR Spectroscopy in Liquids and Solids written by Vladimir I. Bakhmutov and published by CRC Press. This book was released on 2015-04-10 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt: NMR Spectroscopy in Liquids and Solids provides an introduction of the general concepts behind Nuclear Magnetic Resonance (NMR) and its applications, including how to perform adequate NMR experiments and interpret data collected in liquids and solids to characterize molecule systems in terms of their structure and dynamics. The book is composed of ten chapters. The first three chapters consider the theoretical basis of NMR spectroscopy, the theory of NMR relaxation, and the practice of relaxation measurements. The middle chapters discuss the general aspects of molecular dynamics and their relationships to NMR, NMR spectroscopy and relaxation studies in solutions, and special issues related to NMR in solutions. The remaining chapters introduce general principles and strategies involved in solid-state NMR studies, provide examples of applications of relaxation for the determination of molecular dynamics in diamagnetic solids, and discuss special issues related to solid state NMR— including NMR relaxation in paramagnetic solids. All chapters are accompanied by references and recommended literature for further reading. Many practical examples of multinuclear NMR and relaxation experiments and their interpretations are also presented. The book is ideal for scientists new to NMR, students, and investigators working in the areas of chemistry, biochemistry, biology, pharmaceutical sciences, or materials science.

Author : Franziska Hammerath
Publisher : Springer Science & Business Media
ISBN 13 : 3834824232
Total Pages : 183 pages
Book Rating : 4.33/5 ( download)

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Download or read book Magnetism and Superconductivity in Iron-based Superconductors as Probed by Nuclear Magnetic Resonance written by Franziska Hammerath and published by Springer Science & Business Media. This book was released on 2012-08-31 with total page 183 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nuclear Magnetic Resonance (NMR) has been a fundamental player in the studies of superconducting materials for many decades. This local probe technique allows for the study of the static electronic properties as well as of the low energy excitations of the electrons in the normal and the superconducting state. On that account it has also been widely applied to Fe-based superconductors from the very beginning of their discovery in February 2008. This dissertation comprises some of these very first NMR results, reflecting the unconventional nature of superconductivity and its strong link to magnetism in the investigated compounds LaO1–xFxFeAs and LiFeAs.

Author : James McConnell
Publisher : Cambridge University Press
ISBN 13 : 9780521107716
Total Pages : 0 pages
Book Rating : 4.17/5 ( download)

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Download or read book The Theory of Nuclear Magnetic Relaxation in Liquids written by James McConnell and published by Cambridge University Press. This book was released on 2009-03-05 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a complete exposition of the theory of nuclear magnetic relaxation caused by the thermal motion of the molecule containing the relaxing nucleus. The author begins by defining the physical quantities encountered in nuclear magnetic resonance studies and surveying pioneering investigations in the field. Nuclear magnetic relaxation by scalar, dipolar, quadrupolar and spin-rotational interactions and by anisotropic chemical shift are then examined in detail. Relaxation rates are expressed in terms of spectral densities, and the values of the spectral densities for various molecular shapes are calculated by random walk or Brownian motion dynamics. The text should be within the grasp of readers who have taken undergraduate courses in electromagnetic theory and in classical and quantum mechanics, although topics in these fields of particular relevance are to be found in appendices. This book will be of value to postgraduate students and research workers using n.m.r. in physics and physical chemistry departments, and by scientists in industrial and medical research.

Author : Claudine Lacroix
Publisher : Springer Science & Business Media
ISBN 13 : 3642105890
Total Pages : 682 pages
Book Rating : 4.90/5 ( download)

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Download or read book Introduction to Frustrated Magnetism written by Claudine Lacroix and published by Springer Science & Business Media. This book was released on 2011-01-12 with total page 682 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of highly frustrated magnetism has developed considerably and expanded over the last 15 years. Issuing from canonical geometric frustration of interactions, it now extends over other aspects with many degrees of freedom such as magneto-elastic couplings, orbital degrees of freedom, dilution effects, and electron doping. Its is thus shown here that the concept of frustration impacts on many other fields in physics than magnetism. This book represents a state-of-the-art review aimed at a broad audience with tutorial chapters and more topical ones, encompassing solid-state chemistry, experimental and theoretical physics.

Author : Adir Luiz
Publisher : BoD – Books on Demand
ISBN 13 : 9533071516
Total Pages : 362 pages
Book Rating : 4.10/5 ( download)

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Download or read book Superconductivity written by Adir Luiz and published by BoD – Books on Demand. This book was released on 2011-07-18 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Superconductivity was discovered in 1911 by Kamerlingh Onnes. Since the discovery of an oxide superconductor with critical temperature (Tc) approximately equal to 35 K (by Bednorz and Muller 1986), there are a great number of laboratories all over the world involved in research of superconductors with high Tc values, the so-called "High-Tc superconductors". This book contains 15 chapters reporting about interesting research about theoretical and experimental aspects of superconductivity. You will find here a great number of works about theories and properties of High-Tc superconductors (materials with Tc > 30 K). In a few chapters there are also discussions concerning low-Tc superconductors (Tc

Author : N. Bloembergen
Publisher :
ISBN 13 :
Total Pages : 200 pages
Book Rating : 4.29/5 ( download)

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Download or read book Nuclear Magnetic Relaxation written by N. Bloembergen and published by . This book was released on 1961 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : Jozef Kowalewski
Publisher :
ISBN 13 : 9781351264570
Total Pages : pages
Book Rating : 4.75/5 ( download)

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Download or read book Nuclear Spin Relaxation in Liquids written by Jozef Kowalewski and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Author : A. Abragam
Publisher : Oxford University Press, USA
ISBN 13 :
Total Pages : 656 pages
Book Rating : 4.62/5 ( download)

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Download or read book Nuclear Magnetism written by A. Abragam and published by Oxford University Press, USA. This book was released on 1982 with total page 656 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the most interesting advances of the last ten to fifteen years in nuclear magnetism. The book is both theoretical and experimental and includes a large number of equations and a selection of numerical results and experimental curves.

Author : Madan M Kaila
Publisher : Elsevier
ISBN 13 : 9780123847126
Total Pages : 516 pages
Book Rating : 4.25/5 ( download)

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Download or read book Quantum Magnetic Resonance Imaging Diagnostics of Human Brain Disorders written by Madan M Kaila and published by Elsevier. This book was released on 2010-06-21 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: Magnetic resonance imaging (MRI) is a medical imaging technique used to visualize detailed internal structure of the body. This book discusses the recent developments in the field of MRI and its application to the diagnosis of human brain disorders. In addition, it reviews the newly emerging concepts and technology, based on the multi-coherence imaging (MQCI). It explains how computer packages can be used to generate images in diseased states and compare them to in vivo results. This will help improve the diagnosis of brain disorders based on the real-time events happening on atomic and molecular quantum levels. This is important since quantum-based MRI would enable clinicians to detect brain tumors at the very early stages. Uses practical examples to explain the techniques - making it easier to understand the concepts Uses diagrams to explain the physics behind the technique - avoiding the use of complicated mathematical formulae