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Magnetocaloric effects in Mn1.35Fe0.65P1-xSix compounds |
| Geng Yao-Xiang(耿遥祥), Tegus O(特古斯)†, and Bi Li-Ge(毕力格) |
| Inner Mongolia Key Laboratory for Physics and Chemistry of Functional Materials, Inner Mongolia Normal University, Hohhot 010022, China |
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Abstract The structural and magnetocaloric properties of Mn1.35Fe0.65P1-xSix compounds are investigated. The Si-substituted compounds, Mn1.35Fe0.65P1-xSix with x = 0.52, 0.54, 0.55, 0.56, and 0.57, are prepared by high-energy ball milling and the solid-state reaction. The X-ray diffraction shows that the compounds crystallize into the Fe2P-type hexagonal structure with space group P$\bar{6}$2m. The magnetic measurements show that the Curie temperature of the compound increases from 253 K for x = 0.52 to 296 K for x = 0.56. The isothermal magnetic-entropy change of the Mn1.35Fe0.65P1-xSix compound decreases with the Si content increasing. The maximal value of the magnetic-entropy change is about 7.0 J/kg$\cdot$K in the Mn1.35Fe0.65P0.48Si0.52 compound with a field change of 1.5 T. The compound quenched in water possesses a larger magnetic entropy change and a smaller thermal hysteresis than the non-quenched samples. The thermal hysteresis of the compound is less than 3.5 K. The maximum adiabatic temperature change is about 1.4 K in the Mn1.35Fe0.65P0.45Si0.55 compound with a field change of 1.48 T.
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Received: 04 May 2011
Revised: 29 September 2011
Accepted manuscript online:
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PACS:
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75.50.-y
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(Studies of specific magnetic materials)
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43.40.-r
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(Structural acoustics and vibration)
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75.30.Sg
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(Magnetocaloric effect, magnetic cooling)
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| Fund: Project supported by the National Natural Science Foundation of China (Grant No. 50961010) and the Natural Science Foundation of Inner Mongolia, China (Grant No. 20080404Zd01). |
Corresponding Authors:
Tegus O,tegusph@imnu.edu.cn
E-mail: tegusph@imnu.edu.cn
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Cite this article:
Geng Yao-Xiang(耿遥祥), Tegus O(特古斯), and Bi Li-Ge(毕力格) Magnetocaloric effects in Mn1.35Fe0.65P1-xSix compounds 2012 Chin. Phys. B 21 037504
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| [1] Tishin A M 1999 Handbook of Magnetic Materials (Vol. 12) (Elsevier: New York) p. 395[2] Gschneidner K A and Pecharsky V K 2000 Rev. Mater. Sci. 30 387[3] Br點k E 2005 J. Phys. D: Appl. Phys. 38 R381[4] Pecharsky V K and Gschneidner K A 1997 Phys. Rev. Lett. 78 4494[5] Wada H and Tanabe Y 2001 Appl. Phys. Lett. 79 3302[6] Hu F X, Shen B G, Sun J R and Cheng Z H 2001 Appl. Phys. Lett. 78 3675[7] Chen Y F, Wang F, Shen B G, Hu F X, Cheng Z H, Wang G J and Sun J R 2002 Chin. Phys. 11 74[8] Fujita A, Fujieda S, Hasegawa Y and Fukamichi K 2003 Phys. Rev. B 67 104416[9] Wang Z C, He L H, Cuevas F, Latroche M, Shen J and Wang F W 2011 Chin. Phys. B 20 067502[10] Trung N T, Zhang L, Caron L, Buschow K H J and Br點k E 2010 Appl. Phys. Lett. 96 172504[11] Wang F, Shen B G, Zhang J, Sun J R, Meng F B and Li Y X 2010 Chin. Phys. B 19 067501[12] Tegus O, Br點k E, Buschow K H J and de Boer F R 2002 Nature 415 150[13] Liu D M, Yue M, Zhang J X, McQueen T M, Lynn Jeffrey W, Wang X L, Chen Y, Li J Y, Cava R J, Liu X B, Zaven A and Huang Q 2009 Phys. Rev. B 79 014435[14] Trung N T, Ou Z Q, Gortenmulder T J, Tegus O, Buschow K H J and Br點k E 2009 Appl. Phys. Lett. 94 102513[15] Cam Thanh D T, Br點k E, Tegus O, Klaasse J C P, Gortenmulder T J and Buschow K H J 2006 J. Appl. Phys. 99 08Q107[16] Dagula W, Tegus O, Li X W, Song L, Br點k E, Cam Thanh D T, de Boer F R and Buschow K H J 2006 J. Appl. Phys. 99 08Q105[17] Yan A, M黮ler K H, Schultz L and Gutfleisch O 2006 J. Appl. Phys. 99 08K903[18] Yabuta H, Umeo K, Takabatake T, Chen L and Uwatoko Y 2007 J. Magn. Magn. Mater. 310 1826[19] Geng Y X, Tegus O, Blige Q, Wang Y H and Wang D M 2010 Fourth International Conference on Magnetic Refrigeration at Room Temperature, August 23-28, 2010 Baotou, China, pp. 213-217[20] Dagula W, Tegus O, Fuquan B, Zhang L, Si P Z, Zhang M, Zhang W S, Br點k E, de Boer F R and Buschow K H J 2005 IEEE Trans. Magn. 41 2778[21] Cam Thanh D T, Br點k E, Trung N T, Klaasse J C P, Buschow K H J, Ou Z Q, Tegus O and Caron L 2008 J. Appl. Phys. 103 07B318[22] Br點k E, Tegus O, Zhang L, Li X W, de Boer F R and Buschow K H J 2004 J. Alloys Compd. 383 32[23] Buchelnikov V, Taskaev S, Drobosyuk M, Khovaylo V, Koledov V, Shavrov V, Fediy A, Sokolovskiy V, Pavlukhina O and Andreevskikh A 2010 Fourth International Conference on Magnetic Refrigeration at Room Temperature, August 23-28, 2010 Baotou, China, pp. 31-36 |
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