Large cryogenic magnetocaloric effect in transition metal-based double dinitrates
Exploring paramagnetic salts with weak magnetic interactions and large saturation magnetic moments is of great significance in the field of cryogenic magnetic refrigeration. In this article, the first-principles calculation is performed to predict the magnetocaloric effect (MCE) of La-transition metal-based double nitrate hydrated salts. Through the comparison of the calculation results, La2Mn3(NO3)12·24H2O (LMnN) is chosen for further research on cryogenic magnetic refrigeration. The magnetic measurements reveal a weak antiferromagnetic interaction and large saturation magnetic moment of 4.95 μB of LMnN, which are consistent with theoretical calculation results. In addition, the maximum magnetic entropy change of LMnN is calculated to be 26.61 J kg−1 K−1 under a magnetic field change of 7 T at 2.5 K, which is greater than that of another double nitrate hydrated salts La2Co3(NO3)12·24H2O (LCoN). Excellent MCE verifies the rationality of first-principles calculation and suggests that LMnN is a promising hydrated paramagnetic salt for cryogenic magnetic refrigeration.
Authors
- Zuhua Chen
- Haiming Lu (ORCID: https://orcid.org/0000-0001-7293-1806)
- Guochun Zhang (ORCID: https://orcid.org/0000-0002-8795-6130)
- Linglu Wu (ORCID: https://orcid.org/0000-0002-1316-0543)
- Dunhui Wang (ORCID: https://orcid.org/0000-0002-6043-595X)
- Zhenxing Li (ORCID: https://orcid.org/0000-0001-7625-7660)
- Chengliang Zhang (ORCID: https://orcid.org/0000-0003-4317-5778)
- Jun Shen (ORCID: https://orcid.org/0000-0001-8748-8085)
- Zhengming Zhang (ORCID: https://orcid.org/0000-0003-4545-296X)
- Heng Tu (ORCID: https://orcid.org/0000-0003-2871-1800)
Institutions
- Beijing Institute of Technology (CN)
- Applied Science Private University (JO)
- Chinese Academy of Sciences (CN)
- Yili Normal University (CN)
- Technical Institute of Physics and Chemistry (CN)
- Electronics Research Institute (EG)
- University of Chinese Academy of Sciences (CN)
- Hangzhou Dianzi University (CN)
- Nanjing University (CN)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2024-12-23
- DOI
- https://doi.org/10.1063/5.0243733
- Citations
- 2
- Primary Topic
- Magnetic and transport properties of perovskites and related materials
- Type
- article
- Field-Weighted Citation Impact
- 0.24
Funders
- National Natural Science Foundation of China
- National Key Research and Development Program of China
- National Science Fund for Distinguished Young Scholars