Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds
The work presents the magnetocaloric effect and critical behavior of monoclinic polycrystalline Pr0.7CaxSr0.3-xMnO3 prepared by solid state reaction. The ferromagnetic-paramagnetic phase transition temperature decreases from 267, 202, 138 to 126 K with increasing doping concentration from x=0 to 0.3...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2018-10-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.5043113 |
| _version_ | 1819059849910026240 |
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| author | Yen Pham T. D. Thanh T. V. Manh N. T. Dung W. H. Shon J. S. Rhyee Dong-Hyun Kim Seong-Cho Yu |
| author_facet | Yen Pham T. D. Thanh T. V. Manh N. T. Dung W. H. Shon J. S. Rhyee Dong-Hyun Kim Seong-Cho Yu |
| author_sort | Yen Pham |
| collection | DOAJ |
| description | The work presents the magnetocaloric effect and critical behavior of monoclinic polycrystalline Pr0.7CaxSr0.3-xMnO3 prepared by solid state reaction. The ferromagnetic-paramagnetic phase transition temperature decreases from 267, 202, 138 to 126 K with increasing doping concentration from x=0 to 0.3. The maximum values of entropy change appear near the transition phase points and were found to be 6.4, 7.2, 3.9 and 4.0 J.kg-1.K-1 with 5 Tesla of field change for x=0-0.3, respectively. However, the shift to the higher temperature side with the increasing field change was observed clearly in sample x=0.1. Besides, the considering magnetic phase transition of samples based on Banerjee’s criterion showed a first-order phase transition in Pr0.7Ca0.1Sr0.2MnO3 (x=0.1) while samples with x=0, x=0.2 and 0.3 exhibited a second-order phase transition. |
| first_indexed | 2024-12-21T14:17:38Z |
| format | Article |
| id | doaj.art-19139883662e468692ddea91cfceaaa5 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-21T14:17:38Z |
| publishDate | 2018-10-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-19139883662e468692ddea91cfceaaa52022-12-21T19:00:51ZengAIP Publishing LLCAIP Advances2158-32262018-10-01810101417101417-610.1063/1.5043113032893ADVMagnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compoundsYen Pham0T. D. Thanh1T. V. Manh2N. T. Dung3W. H. Shon4J. S. Rhyee5Dong-Hyun Kim6Seong-Cho Yu7Department of Physics, Chungbuk National University, Chungbuk, Cheongju 28644, South KoreaInstitute of Materials Science, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Hanoi, VietnamDepartment of Physics, Chungbuk National University, Chungbuk, Cheongju 28644, South KoreaInstitute of Materials Science, Vietnam Academy of Science and Technology, 18-Hoang Quoc Viet, Hanoi, VietnamDepartment of Applied Physics, Kyunghee University, Yongin, Gyung-gi 17104, South KoreaDepartment of Applied Physics, Kyunghee University, Yongin, Gyung-gi 17104, South KoreaDepartment of Physics, Chungbuk National University, Chungbuk, Cheongju 28644, South KoreaDepartment of Physics, Chungbuk National University, Chungbuk, Cheongju 28644, South KoreaThe work presents the magnetocaloric effect and critical behavior of monoclinic polycrystalline Pr0.7CaxSr0.3-xMnO3 prepared by solid state reaction. The ferromagnetic-paramagnetic phase transition temperature decreases from 267, 202, 138 to 126 K with increasing doping concentration from x=0 to 0.3. The maximum values of entropy change appear near the transition phase points and were found to be 6.4, 7.2, 3.9 and 4.0 J.kg-1.K-1 with 5 Tesla of field change for x=0-0.3, respectively. However, the shift to the higher temperature side with the increasing field change was observed clearly in sample x=0.1. Besides, the considering magnetic phase transition of samples based on Banerjee’s criterion showed a first-order phase transition in Pr0.7Ca0.1Sr0.2MnO3 (x=0.1) while samples with x=0, x=0.2 and 0.3 exhibited a second-order phase transition.http://dx.doi.org/10.1063/1.5043113 |
| spellingShingle | Yen Pham T. D. Thanh T. V. Manh N. T. Dung W. H. Shon J. S. Rhyee Dong-Hyun Kim Seong-Cho Yu Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds AIP Advances |
| title | Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds |
| title_full | Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds |
| title_fullStr | Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds |
| title_full_unstemmed | Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds |
| title_short | Magnetocaloric effect and the change from first- to second-order magnetic phase transition in Pr0.7CaxSr0.3-xMnO3 polycrystalline compounds |
| title_sort | magnetocaloric effect and the change from first to second order magnetic phase transition in pr0 7caxsr0 3 xmno3 polycrystalline compounds |
| url | http://dx.doi.org/10.1063/1.5043113 |
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