Sung Ho Kim, Oun-Ho Park, et al.
Small
Paper
Critical behaviour of [110]-stressed rbcaf3
Abstract
We have investigated the cubic to tetragonal phase transition in RbCaF3 under [110] uniaxial stress by monitoring the EPR lines of the cubic Gd3+ centre which shift proportionaly to the square of the order parameter (the rotational anngle of the CaF6 octahedra φ) or those of the Gd3+-O2-pair which splits linearly in φ. © 1991, Taylor & Francis Group, LLC. All rights reserved.
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