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Specific-heat study of the triangular-lattice antiferromagnet RbCuCl |
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| Authors: | F. Pérez-Willard A. Faißt J. Wosnitza H.. v. Löhneysen U. Schotte H. Tanaka |
| Affiliation: | 1.Physikalisches Institut, Universit?t Karlsruhe, Engesserstrasse 7, 76128 Karlsruhe, Germany,DE;2.Hahn-Meitner-Institut, 14109 Berlin, Germany,DE;3.Department of Physics, Faculty of Science, Tokyo Institute of Technology, Tokyo 152, Japan,JP |
| Abstract: | We report on the magnetic phase diagram of the distorted triangular-lattice antiferromagnet RbCuCl3 for a magnetic field applied parallel to the basal plane (). High-resolution measurements of the specific heat and of the magnetocaloric effect have been performed in magnetic fields up to 14 T. The high-field specific-heat data reveal the existence of an intermediate phase between the paramagnetic and the frustrated antiferromagnetic phase. Received 18 October 1999 |
| Keywords: | PACS. 75.40.Cx Static properties (order parameter static susceptibility heat capacities critical exponents etc.) - 75.50.Ee Antiferromagnetics - 64.60.Fr Equilibrium properties near critical points critical exponents |
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