Experimental studies of boson fields in solids
"This book provides a new understanding of the large amount of experimental results gained in solid state physics during the last seven decades. For more than 160 different materials it is shown that data analyses in terms of atomistic models (Hamiltonians) as performed in the original publicat...
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| Format: | Elektronisch E-Book |
| Sprache: | English |
| Veröffentlicht: |
Singapore
World Scientific Publishing Company Pte Limited
2018
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| Schlagworte: | |
| Online-Zugang: | UBY01 URL des Erstveröffentlichers |
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| Zusammenfassung: | "This book provides a new understanding of the large amount of experimental results gained in solid state physics during the last seven decades. For more than 160 different materials it is shown that data analyses in terms of atomistic models (Hamiltonians) as performed in the original publications give not a quantitatively satisfactory description of either excitation spectra or dynamic properties. Instead, the experimental evidences are elaborated that field theories are necessary. However, most experimentalists are not familiar with field theories. Moreover, realistic field theories of magnetism are missing. The book illustrated in an empirical way the elements of future field theories of solid state physics with special emphasis on magnetic materials. In contrast to the many available textbooks on quantum field theories that treat more on algorithmic formalities rather than to make reference to the experimental facts, the method of this book can be characterized as pragmatic instead of abstract theoretic. This methodical concept considerably facilities to experimentalists to get acquainted with the basic ideas of field theories. A ready field theory is not provided by this experimental study."-- |
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| Beschreibung: | Includes bibliographical references and index History of conventional spin wave theory -- Basic issues of renormalization group (RG) theory -- Universality -- Microscopic processes -- Relevant and non-relevant magnons -- Crossover phenomena -- Metastability of universality classes -- Relevant and non-relevant interactions -- Temperature dependence of the magnon excitation spectra -- Magnetic heat capacity -- Experimental verification of GSW bosons -- Magnets with and without magnon gap -- Microscopic details: spin structure, site disorder, two order parameters -- The boson fields at the magnetic ordering transition -- Thermal lattice expansion and magnetostriction -- Boson fields near melting transition -- Boson fields in superconductors -- Summary |
| Beschreibung: | 1 online resource (962 pages) illustrations (some color) |
| ISBN: | 9789813235496 |