Low temperature lattice conductivity of some two-dimensional magnetic crystals |
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| Authors: | LHM Coenen HN De Lang JHM Stoelinga H van Kempen P Wyder |
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| Institution: | 1. Physics Laboratory and Research Institute for Materials, University of Nijmegen, Toernooiveld, Nijmegen, The Netherlands |
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| Abstract: | The low temperature lattice conductivity of the two-dimensional Heisenberg ferromagnets (CnH2n+1NH3)2CuCl4, n = 1, 2 have been measured in high magnetic fields up to 6.5T. From these measurements information is obtained about the dimensionality of the acoustical phonon spectrum. An estimate of the phonons mean free path and of the dislocation density of the crystals is made. |
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