Antiferromagnetic exchange interaction of Cr3+ dimer in acid erothro chloride (NH3)(5)CrOHCr(NH3)(4)(H2O) Cl-5 center dot H2O and LaAlO3 : Cr3+ molecules

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	Antiferromagnetic exchange interaction of Cr3+ dimer in acid erothro chloride (NH3)(5)CrOHCr(NH3)(4)(H2O) Cl-5 center dot H2O and LaAlO3 : Cr3+ molecules
	X. Y. Kuang ; K. W. Zhou
刊名	Journal of Physics and Chemistry of Solids
	2000
卷号	61 期号:8 页码:1225-1229
关键词	antiferromagnetic exchange interaction Cr3+ model magnetic properties slater-type orbitals 2-electron integrals 2-center complexes
ISSN号	0022-3697
中文摘要	The antiferromagnetic phenomena of the chromium(III) dimer in acid erothro chloride [(NH3)(5)CrOHCr(NH3)(4)(H2O)]Cl-5. H2O and LaAlO3:Cr3+ have been explained in terms of the Girerd-Journaux-Kahn (GJK) model and the Heitler-London (HL) model, respectively. For the Cr ... Cr distance R in the range 3.2 < R < 4.4 Angstrom, the values of the exchange interaction parameter J calculated with the GJK model are higher by a factor 2-3 than those with the HL model. This means that the contribution of the excited charge-transfer configuration (CTC) is considerably important and the main physical mechanism of the antiferromagnetic characteristics in acid erothro chloride and in LaAlO3:Cr3+ can be attributed to the combined effect of the direct exchange and the superexchange interactions. (C) 2000 Elsevier Science Ltd. All rights reserved.
原文出处	://WOS:000087629200005
公开日期	2012-04-14
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/37075]
专题	金属研究所_中国科学院金属研究所
推荐引用方式 GB/T 7714	X. Y. Kuang,K. W. Zhou. Antiferromagnetic exchange interaction of Cr3+ dimer in acid erothro chloride (NH3)(5)CrOHCr(NH3)(4)(H2O) Cl-5 center dot H2O and LaAlO3 : Cr3+ molecules[J]. Journal of Physics and Chemistry of Solids,2000,61(8):1225-1229.
APA	X. Y. Kuang,&K. W. Zhou.(2000).Antiferromagnetic exchange interaction of Cr3+ dimer in acid erothro chloride (NH3)(5)CrOHCr(NH3)(4)(H2O) Cl-5 center dot H2O and LaAlO3 : Cr3+ molecules.Journal of Physics and Chemistry of Solids,61(8),1225-1229.
MLA	X. Y. Kuang,et al."Antiferromagnetic exchange interaction of Cr3+ dimer in acid erothro chloride (NH3)(5)CrOHCr(NH3)(4)(H2O) Cl-5 center dot H2O and LaAlO3 : Cr3+ molecules".Journal of Physics and Chemistry of Solids 61.8(2000):1225-1229.