Topological versus chemical ordering in network glasses at intermediate and extended length scales
Article Abstract:
The problem of atomic ordering in network glasses is addressed by investigating topological and chemical ordering in structurally disordered AX2 systems and it is shown that both topological and chemical ordering are described by two length scales. The results offer structural insights into length scales that determine many important aspects of super cooled liquid and glass phenomenology.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2005
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localization of light in a disordered medium
Article Abstract:
The Anderson localization phenomenon is a disorder-induced phase transition in the electron-transport behaviour. The effect originates in the interference of electrons that have undergone multiple scattering by defects in the solid. Direct experimental evidence for Anderson localization of light is reported, in optical experiments undertaken on strongly scattering semiconductor powders.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 1997
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Structural relaxation in supercooled water by time-resolved spectroscopy
Article Abstract:
Time resolved optical Kerr effect measurements that unambiguously demonstrate that the structural relaxation of liquid and weakly supercooled water follows the behavior predicted by simple mode coupling theory are reported. The anomalous behavior of weakly supercooled water can be explained using a fully dynamic model.
Publication Name: Nature
Subject: Zoology and wildlife conservation
ISSN: 0028-0836
Year: 2004
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