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.1,2; Hanko, J.1,2; Orendacova, A.1,2; Orendac, M.1,2; Zhou, C. -L.3; Zhu, W. -H.3; Wang, B. -W.3; Wang, Z. -M.3; Gao, S.3
刊名	JOURNAL OF ALLOYS AND COMPOUNDS
	2009-11-13
卷号	487 期号:1-2 页码:425-429
关键词	Rare Earth Alloys And Compounds Chemical Synthesis Magnetocaloric Thermodynamic Properties Magnetic Measurements
ISSN号	0925-8388
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.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000272521900086
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/68641]
专题	中国科学院化学研究所
通讯作者	Sedlakova, L.
作者单位	1.Safarik Univ, Fac Sci, Ctr Low Temp Phys, Kosice 04154, Slovakia 2.Inst Expt Phys SAS, Kosice 04154, Slovakia 3.Peking Univ, Beijing Natl Lab Mol Sci, State Key Lab Rare Earth Mat Chem & Applicat, Coll Chem & Mol Engn, Beijing 100871, Peoples R China
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,2009,487(1-2):425-429.
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,487(1-2),425-429.
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 487.1-2(2009):425-429.