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Theoretical calculations of the R1 red shift of ruby under high pressure
Institution:1. Flinders Institute for NanoScale Science & Technology, College of Science and Engineering, Flinders University, Adelaide, SA 5001, Australia;2. Physics Department, Faculty of Science, Taibah University, Almadinah Almunawarrah, Saudi Arabia;3. School of Chemistry, TrACEES Platform, The University of Melbourne, Parkville, VIC 3010, Australia;1. Center for Mechanics of Solids, Structures and Materials, Department of Aerospace Engineering and Engineering Mechanics, NASCENT Center, The University of Texas at Austin, Austin, TX 78712, United States;2. Department of Biomedical Engineering, The University of Texas at Austin, Austin, TX 78712, United States;3. Texas Materials Institute, The University of Texas at Austin, Austin, TX 78712, United States;1. European Synchrotron Radiation Facility, CS 40220, 38043, Grenoble, Cedex 9, France;2. Bayerisches Geoinstitut, Universität Bayreuth, D-95440 Bayreuth, Germany;3. Jülich Centre for Neutron Science JCNS und Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, D-52425 Jülich, Germany
Abstract:The essentials of the pressure-dependent shifts of the ruby fluorescence lines can be understood by the concept of electron cloud expansion under pressure. By using this concept the relevant formulas for the red shift are derived. The calculated results for red shifts of the ruby R1 line are in good agreement with the experimental data up to 1700 kbar.
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