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SUMMARY:Thermal expansion of beta-eucryptite - Patrick Welche (University 
 of Cambridge)
DTSTART:20090914T100000Z
DTEND:20090914T110000Z
UID:TALK19651@talks.cam.ac.uk
CONTACT:Emli-Mari Nel
DESCRIPTION:Thermal contraction over a large temperature range is explaine
 d by a geometrical effect due to beta-eucryptite's framework structure\, w
 hich is roughly independent of phonon frequency\, and mitigated by a posit
 ive contribution due to anharmonicity\, which decreases with increasing fr
 equency.
LOCATION:TCM Seminar Room\, Cavendish Laboratory\, Department of Physics
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