CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES |
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Hydrogenation, structure and magnetic properties of La(Fe0.91Si0.09)13 hydrides and deuterides |
Wang Zhi-Cui(王志翠)a), He Lun-Hua(何伦华)a), F. Cuevasb), M. Latrocheb), Shen Jun(沈俊)c), and Wang Fang-Wei(王芳卫) a)† |
a Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; b Chimie Metallurgique des Terres Rares, ICMPE-CNRS UMR 7182, 2-8 rue Henri Dunant, 94320 Thiais, France; c Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China |
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Abstract Hydrogenation, crystal structure and magnetic properties of La(Fe0.91Si0.09)13H(D)y have been studied by pressure-composition isotherms (PCI), X-ray diffraction (XRD), differential scanning calorimetry (DSC) and magnetization measurements. The maximum absorption capacity is found to be 1.9 H(D) atoms per formula unit as a solid solution. All hydrides and deuterides crystallize in the NaZn13-type cubic structure with the lattice parameter increasing linearly with H(D) concentration. The H(D) absorption enhances the Curie temperature significantly. The magnetic entropy change of the highly H-absorbed compound La(Fe0.91Si0.09)13H1.81 reaches ~26 J/kg·K under a magnetic field change of 5 T near the Curie temperature TC=350 K. No observable isotope effect seems to imply that only the magnetovolume effect is responsible for the strong interplay between magnetism and lattice.
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Received: 24 January 2011
Revised: 10 March 2011
Accepted manuscript online:
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PACS:
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75.30.Sg
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(Magnetocaloric effect, magnetic cooling)
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65.40.gd
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(Entropy)
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67.63.Cd
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(Molecular hydrogen and isotopes)
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Fund: Project supported by the National Basic Research Program of China (973 Program) (Grant No. 2010CB833102), the Knowl-
edge Innovation Project of the Chinese Academy of Sciences, and the National Natural Science Foundation of China (Grant
Nos. 10974244 and 11004204). |
Cite this article:
Wang Zhi-Cui(王志翠), He Lun-Hua(何伦华), F. Cuevas, M. Latroche, Shen Jun(沈俊), and Wang Fang-Wei(王芳卫) Hydrogenation, structure and magnetic properties of La(Fe0.91Si0.09)13 hydrides and deuterides 2011 Chin. Phys. B 20 067502
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[1] |
Tishin A M 1999 Handbook of Magnetic Materials ed. Buschow K H J (Amsterdam: Elsevier) p. 395
|
[2] |
Pecharcky V K and Gschneidner Jr K A 1999 J. Magn. Magn. Mater. 200 44
|
[3] |
Shen B G, Sun J R, Hu F X, Zhang H W and Cheng Z H 2009 Adv. Mater. 21 4545
|
[4] |
Hu F X, Shen B G, Sun J R and Zhang X X 2000 Chin. Phys. 9 550
|
[5] |
Hu F X, Qian X L, Wang G J, Sun J R, Shen B G, Cheng Z H and Gao J 2005 Chin. Phys. 14 2329
|
[6] |
Fu B, Long Y, Shi P J, Ma T, Bao B, Yan A R and Chen R J 2009 Chin. Phys. B 18 4506
|
[7] |
Hu F X, Shen B G, Sun J R and Cheng Z H 2001 Appl. Phys. Lett. 78 3675
|
[8] |
Hu F X, Shen B G, Sun J R, Wang G J and Cheng Z H 2002 Appl. Phys. Lett. 80 826
|
[9] |
Fujita A, Fujieda S, Hasegawa Y and Fukamichi K 2003 Phys. Rev. B 67 104416
|
[10] |
Chen Y F, Wang F, Shen B G, Hu F X, Sun J R, Wang G J and Cheng Z H 2003 J. Phys.: Condens. Matter 15 L161
|
[11] |
Wang F W, Wang G J, Hu F X, Kurbakov A, Shen B G and Cheng Z H 2003 J. Phys.: Condens. Matter 15 5269
|
[12] |
Jia L, Sun J R, Wang F W, Zhao T Y, Zhang H W, Shen B G, Li D X, Nimori S, Ren Y and Zeng Q S 2008 Appl. Phys. Lett. 92 101904
|
[13] |
Liu X B, Liu X D and Altounian Z 2005 J. Appl. Phys. 98 113904
|
[14] |
Paul-Boncour V, Guillot M, Wiesinger G and Andre G 2005 Phys. Rev. B 72 174430
|
[15] |
Shen J, Li Y X, Sun J R and Shen B G 2009 Chin. Phys. B 18 2058
|
[16] |
Wang F, Wang G J, Sun J R and Shen B G 2008 Chin. Phys. B 17 3087
|
[17] |
Sun J R, Hu F X and Shen B G 2000 Phys. Rev. Lett. 85 4191
|
[18] |
Zhang H W, Shen J, Dong Q Y, Zhao T Y, Li Y X, Sun J R and Shen B G 2008 J. Magn. Magn. Mater. 320 1879
|
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