Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds
The magnetic properties and magnetocaloric effect (MCE) of Gd4Sb3-xRx (R = Si, Ge, Sn, x = 0, 0.25, 0.5, 0.75) compounds have been studied systematically. The Curie temperature (Tc) of these compounds can be tuned from 270 K to 305 K depending on the substitution amount. All the compounds undergo a...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2019-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5072770 |
| _version_ | 1819151399165886464 |
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| author | Shaohui Chen Guiquan Yao Jinsong Zhang Xiaomeng Fan Xiaowei Yin Zixin Chen Weibin Cui Qiang Wang |
| author_facet | Shaohui Chen Guiquan Yao Jinsong Zhang Xiaomeng Fan Xiaowei Yin Zixin Chen Weibin Cui Qiang Wang |
| author_sort | Shaohui Chen |
| collection | DOAJ |
| description | The magnetic properties and magnetocaloric effect (MCE) of Gd4Sb3-xRx (R = Si, Ge, Sn, x = 0, 0.25, 0.5, 0.75) compounds have been studied systematically. The Curie temperature (Tc) of these compounds can be tuned from 270 K to 305 K depending on the substitution amount. All the compounds undergo a second-order magnetic transition from ferromagnetic (FM) state to paramagnetic (PM) state and exhibit considerable reversible MCE near room temperature. The maximum of magnetic entropy change (ΔSMmax) for a magnetic field change of 7 T can reach 4.25 Jkg-1K-1 in Gd4Sb3 phase and independent on Si substitution amount. By Ge and Sn substitution, reduced ΔSMmax of 3.5 and 4.25 Jkg-1K-1 can be obtained in Gd4Sb2.75Ge0.25 and Gd4Sb2.75Sn0.25 alloys respectively. The considerable MCE with no hysteresis and working temperature near room temperature suggests that these materials could be promising candidates as ambient magnetocaloric materials. |
| first_indexed | 2024-12-22T14:32:47Z |
| format | Article |
| id | doaj.art-96cdf174189f4f79a0e09193641a05c6 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-22T14:32:47Z |
| publishDate | 2019-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-96cdf174189f4f79a0e09193641a05c62022-12-21T18:22:43ZengAIP Publishing LLCAIP Advances2158-32262019-03-0193035206035206-410.1063/1.5072770007992ADVMagnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compoundsShaohui Chen0Guiquan Yao1Jinsong Zhang2Xiaomeng Fan3Xiaowei Yin4Zixin Chen5Weibin Cui6Qiang Wang7Key Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, P. R. ChinaState Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, P. R. ChinaNational Institute for Materials Science, Tsukuba 305-0047, JapanKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, ChinaKey Laboratory of Electromagnetic Processing of Materials (Ministry of Education), Northeastern University, Shenyang 110819, ChinaThe magnetic properties and magnetocaloric effect (MCE) of Gd4Sb3-xRx (R = Si, Ge, Sn, x = 0, 0.25, 0.5, 0.75) compounds have been studied systematically. The Curie temperature (Tc) of these compounds can be tuned from 270 K to 305 K depending on the substitution amount. All the compounds undergo a second-order magnetic transition from ferromagnetic (FM) state to paramagnetic (PM) state and exhibit considerable reversible MCE near room temperature. The maximum of magnetic entropy change (ΔSMmax) for a magnetic field change of 7 T can reach 4.25 Jkg-1K-1 in Gd4Sb3 phase and independent on Si substitution amount. By Ge and Sn substitution, reduced ΔSMmax of 3.5 and 4.25 Jkg-1K-1 can be obtained in Gd4Sb2.75Ge0.25 and Gd4Sb2.75Sn0.25 alloys respectively. The considerable MCE with no hysteresis and working temperature near room temperature suggests that these materials could be promising candidates as ambient magnetocaloric materials.http://dx.doi.org/10.1063/1.5072770 |
| spellingShingle | Shaohui Chen Guiquan Yao Jinsong Zhang Xiaomeng Fan Xiaowei Yin Zixin Chen Weibin Cui Qiang Wang Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds AIP Advances |
| title | Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds |
| title_full | Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds |
| title_fullStr | Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds |
| title_full_unstemmed | Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds |
| title_short | Magnetic transition and magnetocaloric effect of Gd4Sb3-xRx (R=Si, Ge, Sn, 0 ≤ x ≤ 0.75) compounds |
| title_sort | magnetic transition and magnetocaloric effect of gd4sb3 xrx r si ge sn 0 ≤ x ≤ 0 75 compounds |
| url | http://dx.doi.org/10.1063/1.5072770 |
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