Thermal properties of high order crystalline dielectric mixtures
Through experiments the heat capacity is determined at constant volume in ternary and quaternary KCl0:5KBr0:25RbBr0:25:Eu2+ and KCl0:25 KBr0:25RbCl0:25RbBr0:25:Eu2+ single crystals. The results are compared with calculated values using the low temperature approximation of the Debye Model, in which t...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2013 |
| País: | México |
| Institución: | Universidad de Sonora |
| Repositorio: | Redalyc-USON |
| OAI Identifier: | oai:redalyc.org:57025669004 |
| Acceso en línea: | https://www.redalyc.org/articulo.oa?id=57025669004 |
| Access Level: | acceso abierto |
| Palabra clave: | Física, Astronomía y Matemáticas Debye solid heat capacity Dielectric crystals alkali halide mixtures |
| Sumario: | Through experiments the heat capacity is determined at constant volume in ternary and quaternary KCl0:5KBr0:25RbBr0:25:Eu2+ and KCl0:25 KBr0:25RbCl0:25RbBr0:25:Eu2+ single crystals. The results are compared with calculated values using the low temperature approximation of the Debye Model, in which the Debye temperature is obtained by applying a Kopp-Neumann relation. It is shown that the Cv values obtained by the Debye model are in good agreement with the measured ones which demonstrates that the Kopp-Neumann law used for metals and other solids can also be applied to ternary and quaternary alkali halide crystals, that is also an element that strengthens the diffractogram of the quaternary mixture which shows that the crystal has a single phase, thus being a solid solution. |
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