Magnetism and magnetocaloric effect in S=7/2 Heisenberg antiferromagnet   Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O

doi:10.1016/j.jallcom.2009.07.156

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	Magnetism and magnetocaloric effect in S=7/2 Heisenberg antiferromagnet Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O
	Sedlakova, L. ; Hanko, J. ; Orendacova, A. ; Orendac, M. ; Zhou, C.L. ; Zhu, W.H. ; Wang, B.W. ; Wang, Z.M. ; Gao, S.
刊名	journal of alloys and compounds
	2009
关键词	Rare earth alloys and compounds Chemical synthesis Magnetocaloric Thermodynamic properties Magnetic measurements REFRIGERATION
DOI	10.1016/j.jallcom.2009.07.156
英文摘要	Magnetic properties of Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O were investigated by static and alternating susceptibility, specific heat and adiabatic magnetization. The material is characterized by weak antiferromagnetic interactions, arising predominantly from dipolar couplings that leads to magnetic ordering at T-N = 0.19 K. A pronounced change in the magnetic entropy was found near the critical temperature. The magnetocaloric behavior estimated from specific heat data is confirmed by adiabatic magnetization above 0.2 K. In addition, adiabatic magnetization and demagnetization near the critical temperature revealed only a small hysteresis. Finally, the magnetothermal response and resulting refrigeration capacity of Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O is compared with other magnetic refrigerants proposed for low-temperature applications. (C) 2009 Elsevier B.V. All rights reserved.; Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; SCI(E); 32; ARTICLE; 1-2; 425-429; 487
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/245145]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Sedlakova, L.,Hanko, J.,Orendacova, A.,et al. Magnetism and magnetocaloric effect in S=7/2 Heisenberg antiferromagnet Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O[J]. journal of alloys and compounds,2009.
APA	Sedlakova, L..,Hanko, J..,Orendacova, A..,Orendac, M..,Zhou, C.L..,...&Gao, S..(2009).Magnetism and magnetocaloric effect in S=7/2 Heisenberg antiferromagnet Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O.journal of alloys and compounds.
MLA	Sedlakova, L.,et al."Magnetism and magnetocaloric effect in S=7/2 Heisenberg antiferromagnet Gd-2(fum)(3)(H2O)(4)center dot 3H(2)O".journal of alloys and compounds (2009).