Optical and Computational Studies of Structural/magnetic Phase Transitions
Author: Seung-Jin Han
Publisher:
Published: 1992
Total Pages: 272
ISBN-13:
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Author: Seung-Jin Han
Publisher:
Published: 1992
Total Pages: 272
ISBN-13:
DOWNLOAD EBOOKAuthor: Daivd P Belanger
Publisher: World Scientific
Published: 2022-07-27
Total Pages: 246
ISBN-13: 981125950X
DOWNLOAD EBOOKMagnetic crystals are ideal systems to study the universal properties of phase transitions, particularly systems with quenched randomness and frustration. Pure systems with different symmetries provide the foundation for studies in corresponding systems with quenched randomness. Because phenomena near phase transitions have universal properties, results from bulk magnetic crystals provide a basis for understanding phase transitions in films and nanoparticles, as well as many non-magnetic materials.This motivates the subject of this book, which discusses phase transitions studies in magnetic crystals from the perspective of an experimentalist who has done extensive work in the field. The advantage is that many experimental techniques are described in sufficient detail for a good understanding of the results and their comparison to theory.
Author:
Publisher:
Published: 1982
Total Pages: 88
ISBN-13:
DOWNLOAD EBOOKAuthor: M. Ausloos
Publisher: Springer Science & Business Media
Published: 2012-12-06
Total Pages: 278
ISBN-13: 3642821383
DOWNLOAD EBOOKThe present volume contains the courses given at a Summer School on "Magne tic Phase Transitions" held at the Ettore Majorana Centre for Scientific Culture, at Erice (Trapani), Italy in July 1983 under the auspices of the Condensed Matter Division of the European Physical Society in their series on Materials Science and Technology. The student participants came from West Germany, Great Britain, Brazil, Greece, Switzerland, Sweden, Italy, USA and The Netherlands. The lecturers came from various European countries, Israel, USA and Canada. The atmosphere at the meeting was excellent and a good spirit of companion ship developed during two weeks of working together. The spread of interests among the lecturers and students was divers;jfied but balanced. The main lec turing contributions are reported in this volume. They represent up-to-date reviews in a pedagogical style. In addition, informal presentations on cur rent research interests were made which have not been included. The school attempted to summarize the current position on the properties of magnetic phase transitions from several points of view. The range and scope of the oretical techniques, and of particular aspects of materials or phenomena as observed experimentally were very well put forward by the lecturers. The grouping of manuscripts in chapters does not represent, however, the sched ule followed during the school. Contributions on mean-field approximations and renormalization-group methods either for static or dynamic phenomena can be found at various places in the following sections.
Author: Gunnar Benediktsson
Publisher:
Published: 1982
Total Pages: 88
ISBN-13:
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Publisher:
Published: 2007
Total Pages: 924
ISBN-13:
DOWNLOAD EBOOKAuthor: Eduardo Mendive Tapia
Publisher: Springer Nature
Published: 2020-01-03
Total Pages: 144
ISBN-13: 3030372383
DOWNLOAD EBOOKMany technological applications exploit a variety of magnetic structures, or magnetic phases, to produce and optimise solid-state functionality. However, most research advances are restricted to a reduced number of phases owing to computational and resource constraints. This thesis presents an ab-initio theory to efficiently describe complex magnetic phases and their temperature-dependent properties. The central assumption is that magnetic phases evolve slowly compared with the underlying electronic structure from which they emerge. By describing how the electronic structure adapts to the type and extent of magnetic order, a theory able to describe multi-spin correlations and their effect on the magnetism at finite temperature is obtained. It is shown that multi-spin correlations are behind the temperature and magnetic field dependence of the diverse magnetism in the heavy rare earth elements. Magnetically frustrated Mn-based materials and the effect of strain are also investigated. These studies demonstrate that the performance of solid-state refrigeration can be enhanced by multi-spin effects.
Author: National Science Foundation (U.S.).
Publisher:
Published: 1992
Total Pages: 616
ISBN-13:
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Publisher:
Published: 2002
Total Pages: 776
ISBN-13:
DOWNLOAD EBOOKAuthor: Marcel Ausloos
Publisher: Springer
Published: 1983
Total Pages: 290
ISBN-13:
DOWNLOAD EBOOKThe present volume contains the courses given at a Summer School on "Magne tic Phase Transitions" held at the Ettore Majorana Centre for Scientific Culture, at Erice (Trapani), Italy in July 1983 under the auspices of the Condensed Matter Division of the European Physical Society in their series on Materials Science and Technology. The student participants came from West Germany, Great Britain, Brazil, Greece, Switzerland, Sweden, Italy, USA and The Netherlands. The lecturers came from various European countries, Israel, USA and Canada. The atmosphere at the meeting was excellent and a good spirit of companion ship developed during two weeks of working together. The spread of interests among the lecturers and students was divers;jfied but balanced. The main lec turing contributions are reported in this volume. They represent up-to-date reviews in a pedagogical style. In addition, informal presentations on cur rent research interests were made which have not been included. The school attempted to summarize the current position on the properties of magnetic phase transitions from several points of view. The range and scope of the oretical techniques, and of particular aspects of materials or phenomena as observed experimentally were very well put forward by the lecturers. The grouping of manuscripts in chapters does not represent, however, the sched ule followed during the school. Contributions on mean-field approximations and renormalization-group methods either for static or dynamic phenomena can be found at various places in the following sections.