Magnetic properties and enhanced magnetocaloric effect in EuAl$_3$Si single crystals
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arXiv
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| Autori principali: | , , , , , |
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| Natura: | Preprint |
| Pubblicazione: |
2024
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| _version_ | 1866909451906187264 |
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| author | Zeng, Hai Zou, Shuo Wang, Zhou Li, Ziyu Luo, Kangjian Luo, Yongkang |
| author_facet | Zeng, Hai Zou, Shuo Wang, Zhou Li, Ziyu Luo, Kangjian Luo, Yongkang |
| contents | This study presents systematic investigations into the growth and physical properties of EuAl$_3$Si single crystals, encompassing magnetic, transport, and thermodynamic analyses. EuAl$_3$Si undergoes a ferromagnetic transition at $T_C$ = 15 K. A significant reversible magnetocaloric effect was observed around $T_C$. Strikingly, with a small change of magnetic field 2 T, the maximum values of magnetic entropy change (13.4 J/kg K), refrigerant capacity (166 J/kg) and adiabatic temperature change (7.2 K) are found. These parameters respectively are 60%, 148% and 64% larger than those of the parent compound EuAl$_4$, and suggest EuAl$_3$Si as an excellent candidate for magnetic refrigeration applications near the temperature of liquid hydrogen. The possible mechanism for this enhancement is also discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2406_11203 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Magnetic properties and enhanced magnetocaloric effect in EuAl$_3$Si single crystals Zeng, Hai Zou, Shuo Wang, Zhou Li, Ziyu Luo, Kangjian Luo, Yongkang Strongly Correlated Electrons This study presents systematic investigations into the growth and physical properties of EuAl$_3$Si single crystals, encompassing magnetic, transport, and thermodynamic analyses. EuAl$_3$Si undergoes a ferromagnetic transition at $T_C$ = 15 K. A significant reversible magnetocaloric effect was observed around $T_C$. Strikingly, with a small change of magnetic field 2 T, the maximum values of magnetic entropy change (13.4 J/kg K), refrigerant capacity (166 J/kg) and adiabatic temperature change (7.2 K) are found. These parameters respectively are 60%, 148% and 64% larger than those of the parent compound EuAl$_4$, and suggest EuAl$_3$Si as an excellent candidate for magnetic refrigeration applications near the temperature of liquid hydrogen. The possible mechanism for this enhancement is also discussed. |
| title | Magnetic properties and enhanced magnetocaloric effect in EuAl$_3$Si single crystals |
| topic | Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2406.11203 |