Influence of Sr Doping on Magnetic and Magnetocaloric Properties of Nd0.6Sr0.4MnO3
Nd0.6Sr0.4MnO3 sample was fabricated by a solid-state reaction method and its magnetic, magnetocaloric properties were investigated. The Curie temperature, TC, at which a ferromagnetic-paramagnetic transition occurred was found to be of about 270 K. An analysis using the Banejee’s criterion of the e...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
H. : ĐHQGHN
2020
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| Subjects: | |
| Online Access: | http://repository.vnu.edu.vn/handle/VNU_123/78020 https//doi.org/ 10.25073/2588-1124/vnumap.4403 |
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| Institution: | Vietnam National University, Hanoi |
| Language: | English |
| Summary: | Nd0.6Sr0.4MnO3 sample was fabricated by a solid-state reaction method and its magnetic, magnetocaloric properties were investigated. The Curie temperature, TC, at which a ferromagnetic-paramagnetic transition occurred was found to be of about 270 K. An analysis using the Banejee’s criterion of the experiment results for magnetization as a function of temperature and magnetic field and the universal curves of the normalized entropy change versus reduced temperature indicated that the sample undergo the second-order magnetic phase transition. Furthermore, the maximum magnetic entropy change that occurred near TC, measured at a magnetic field span of 50 kOe was found to be of about 6.0 J/kg.K, corresponding to a relative cooling power of 250 J/kg. These values are comparable to those of other manganites. |
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