Article
A new criterion to distinguish the order of magnetic transitions by means of magnetic measurements
Author/s | Bonilla, C. M.
Bartolomé, Fernando García, L. M. Parra Borderías, María Herrero Albillos, Julia Franco García, Victorino |
Department | Universidad de Sevilla. Departamento de Física de la Materia Condensada |
Publication Date | 2010 |
Deposit Date | 2019-02-19 |
Published in |
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Abstract | A universal curve for the magnetic entropy change has been found to exist for a variety of materials with second order phase transitions. We have studied whether this universal behavior of the magnetocaloric effect is ... A universal curve for the magnetic entropy change has been found to exist for a variety of materials with second order phase transitions. We have studied whether this universal behavior of the magnetocaloric effect is maintained in materials with first order phase transition, including RCo2 Laves phases and mixed La2/3(CaxSr1−x)1/3MnO3 manganites, which present both second order and first order magnetic ordering phase transitions. The rescaled magnetic entropy change curves for different applied fields collapse onto a single curve only for materials with second order phase transition. This universal curve may be used as a criterion for determining the order of magnetic phase transitions from purely magnetic measurements. |
Funding agencies | Ministerio de Ciencia e Innovación (MICIN). España Junta de Andalucía |
Project ID. | MAT 2007-65227
P06-FQM- 01823 |
Citation | Bonilla, C.M., Bartolomé, F., García, L.M., Parra Borderías, M., Herrero Albillos, J. y Franco García, V. (2010). A new criterion to distinguish the order of magnetic transitions by means of magnetic measurements. Journal of Applied Physics, 107 (9), 09E131-. |
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