Saved in:
| Main Authors: | , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2024
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2405.20714 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866917680257171456 |
|---|---|
| author | Yang, Ziyu W. Zhang, Jie Pi, Maocai Ye, Xubin Kang, Chenxu Weng, Xiaoliang Tang, Wei Cui, Hongzhi Zeng, Yu-Jia Long, Youwen |
| author_facet | Yang, Ziyu W. Zhang, Jie Pi, Maocai Ye, Xubin Kang, Chenxu Weng, Xiaoliang Tang, Wei Cui, Hongzhi Zeng, Yu-Jia Long, Youwen |
| contents | Bulk magnetic and thermodynamic measurements, along with mean-field calculations, were conducted on the ferromagnetic K3Gd5(PO4)6 powders. No magnetic ordering was observed until 2 K, while the application of an external field B > 1 T resulted in the splitting of the Gd3+ ground state multiplet and induced a non-cooperative Schottky effect. The average nearest-neighbor exchange strength |J1/kB| is determined to be 0.017 K, which leads to a remarkably large low field magnetic entropy change ΔSm = 36.2 J kg-1 K-1 under applied field change B = 2 T at temperature T = 2 K, as well as a maximum adiabatic temperature change Tad = 10.9 K. We contend that ferromagnetic gadolinium orthophosphates serve as a promising reservoir for exploring advanced magnetic refrigerants applicable under low magnetic fields. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2405_20714 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Large low-field magnetocaloric response in a ferromagnetic gadolinium orthophosphate Yang, Ziyu W. Zhang, Jie Pi, Maocai Ye, Xubin Kang, Chenxu Weng, Xiaoliang Tang, Wei Cui, Hongzhi Zeng, Yu-Jia Long, Youwen Materials Science Strongly Correlated Electrons Bulk magnetic and thermodynamic measurements, along with mean-field calculations, were conducted on the ferromagnetic K3Gd5(PO4)6 powders. No magnetic ordering was observed until 2 K, while the application of an external field B > 1 T resulted in the splitting of the Gd3+ ground state multiplet and induced a non-cooperative Schottky effect. The average nearest-neighbor exchange strength |J1/kB| is determined to be 0.017 K, which leads to a remarkably large low field magnetic entropy change ΔSm = 36.2 J kg-1 K-1 under applied field change B = 2 T at temperature T = 2 K, as well as a maximum adiabatic temperature change Tad = 10.9 K. We contend that ferromagnetic gadolinium orthophosphates serve as a promising reservoir for exploring advanced magnetic refrigerants applicable under low magnetic fields. |
| title | Large low-field magnetocaloric response in a ferromagnetic gadolinium orthophosphate |
| topic | Materials Science Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2405.20714 |