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Title: Low-temperature thermal expansion of γ-irradiated ruby
Authors: Brown, I.J.
Brown, M.A.
Issue Date: 1981
Publisher: © American Physical Society
Citation: BROWN and BROWN, 1981. Low-temperature thermal expansion of γ-irradiated ruby. Physical Review Letters, 46(13), pp 835–837
Abstract: Measurements of the low-temperature thermal expansion of γ-irradiated rubies have been made with use of a three-terminal capacitance dilatometer. The data exhibit a positive Schottky-type anomaly at ∼3.9 K, not present in the data obtained for a pure Al2O3 sample, and this contribution to the thermal expansion has been tentatively attributed to the presence of Cr2+ (produced by γ irradiation) exhibiting a large positive magnetic Grüneisen coefficient as predicted by a dynamic Jahn-Teller model.
Description: This article has been published in the journal, Physical Review Letters [© American Physical Society]. It is also available at: http://link.aps.org/abstract/PRL/v46/p835.
URI: https://dspace.lboro.ac.uk/2134/1353
ISSN: 0031-9007
Appears in Collections:Published Articles (Physics)

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