Magnetic properties and large reversible magnetocaloric effect in Er3Pd2
| Autor: | S. Mondal, M. Modak, K.G. Suresh, Sangam Banerjee, Mayukh K. Ray, Bibekananda Maji |
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| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Magnetic moment Analytical chemistry Intermetallic 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Electronic Optical and Magnetic Materials Ion Paramagnetism 0103 physical sciences Magnetic refrigeration Antiferromagnetism 0210 nano-technology Néel temperature Entropy (order and disorder) |
| Zdroj: | Journal of Magnetism and Magnetic Materials. 456:236-240 |
| ISSN: | 0304-8853 |
| DOI: | 10.1016/j.jmmm.2018.02.036 |
| Popis: | The magnetic properties and magnetocaloric effect (MCE) of binary intermetallic compound Er 3 Pd 2 were studied. It exhibits a paramagnetic (PM) to antiferromagnetic (AFM) transition at Neel temperature (T N ) = 10 K. A large reversible MCE was observed which is related to a second order magnetic transition from PM to AFM state. The values of maximum magnetic entropy change ( - Δ S M max ) and adiabatic temperature change ( Δ T ad max ) reach 8.9 J/kg-K and 2.9 K respectively for the field change of 50 kOe with no obvious hysteresis loss. The effective magnetic moment was determined to be 10.16 µ B /Er 3+ , which is notably higher than that of free ion value of Er 3+ (9.59 µ B ), suggests that Pd ions also have considerable amount of magnetic moments in this compound. |
| Databáze: | OpenAIRE |
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