Projects per year
Abstract
The pressure-induced changes to the structure of disordered oxide and chalcogenide network-forming materials are investigated on the length scales associated with the first three peaks in measured diffraction patterns. The density dependence of a given peak position does not yield the network dimensionality, in contrast to metallic glasses where the results indicate a fractal geometry with a local dimensionality of ~5/2. For oxides, a common relation is found between the intermediate-range ordering, as described by the position of the first sharp diffraction peak, and the oxygen-packing fraction, a parameter that plays a key role in driving changes to the coordination number of local motifs. The first sharp diffraction peak can therefore be used to gauge when topological changes are likely to occur, events that transform network structures and their related physical properties.
Original language | English |
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Article number | 214204 |
Number of pages | 5 |
Journal | Physical Review B : Condensed Matter and Materials Physics |
Volume | 93 |
DOIs | |
Publication status | Published - 22 Jun 2016 |
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Dive into the research topics of 'Pressure-driven transformation of the ordering in amorphous network-forming materials'. Together they form a unique fingerprint.Projects
- 5 Finished
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ISIS Experiment Consumables Funding Support
Science and Technology Facilities Council
26/03/14 → 26/09/14
Project: Research council
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ILL and ISIS Experiment Consumables Funding Support
Science and Technology Facilities Council
20/05/13 → 30/09/13
Project: Research council
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Network Structures: from Fundamentals to Functionality
Engineering and Physical Sciences Research Council
5/06/12 → 4/10/15
Project: Research council
Profiles
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Anita Zeidler
- Department of Physics - Lecturer
- Centre for Nanoscience and Nanotechnology
- Condensed Matter Physics CDT
Person: Research & Teaching, Researcher