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arXiv · 1206.0661

Critical Phenomena at the Antiferromagnetic Phase Transition of Azurite

P. T. Cong·B. Wolf·R. S. Manna·A. Brühl·S. Köhler·M. Lang
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Abstract

We report on high-resolution acoustic, specific-heat and thermal expansion measurements in the vicinity of the antiferromagnetic phase transition at T_N = 1.88 K on a high-quality single crystal of the natural mineral azurite. A detailed investigation of the critical contribution to the various quantities at T_N is presented. The set of critical exponents and amplitude ratios of the singular contributions above and below the transition indicate that the system can be reasonably well described by a three-dimensional Heisenberg antiferromagnet.

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P. T. Cong, B. Wolf, R. S. Manna, A. Brühl, S. Köhler, M. Lang. 2012-06-04. Critical Phenomena at the Antiferromagnetic Phase Transition of Azurite. https://doi.org/10.3938/jkps.62.2193

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