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2008 | 113 | 1 | 311-314
Article title

Effect of Si Substitution and Annealing on Magnetocaloric Properties in TbCo_2

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Languages of publication
EN
Abstracts
EN
We report on magnetocaloric properties of the as-cast and annealed TbCo_2 with partial substitution of cobalt by silicon. The samples were characterized by powder X-ray diffraction and investigated by heat capacity measurements (8-300 K, in fields 0 T and 1 T). TbCo_2 undergoes a second-order type phase transition at T_C = 240 K, from paramagnetic to ferrimagnetic state;similar behavior was revealed in the Si-doped compounds. The temperature dependence of magnetic entropy and the corresponding magnetocaloric effect were derived for all studied samples. The influence of the heat treatment and Si doping on magnetocaloric properties will be discussed in context of the analogue case Er(Co_{1-x}Si_x)_2.
Keywords
EN
Year
Volume
113
Issue
1
Pages
311-314
Physical description
Dates
published
2008-01
received
2007-07-09
References
  • 1. E. Warburg, Ann. Phys. (Leipzig), 13, 1441 (1881)
  • 2. V.K. Pecharsky, K.A. Gschneider Jr., J. Magn. Magn. Mater. 200, 44 (1999)
  • 3. D. Vasylyev, J. Prokleska, J. Sebek, V. Sechovsky, J. Alloys Comp. 394, 96 (2005)
  • 4. D. Gignoux, F. Givord, F. Sayetat, J. Magn. Magn. Mater. 15-18, 1235 (1980)
  • 5. N.H. Duc, D.T. Kim Anh, J. Magn. Magn. Mater. 242-245, 873 (2002)
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1076kz
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