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
	2000
发表期刊	Journal of Physics and Chemistry of Solids
ISSN	0022-3697
卷号	61 期号:8 页码:1225-1229
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.
部门归属	sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china. acad sinica, int ctr mat phys, shenyang 110015, peoples r china. sichuan univ, dept phys, chengdu 610064, peoples r china. ccast, world lab, beijing 100080, peoples r china.;kuang, xy (reprint author), sichuan univ, inst atom & mol phys, chengdu 610065, peoples r china
关键词	Antiferromagnetic Exchange Interaction Cr3++ Model Magnetic Properties Slater-type Orbitals 2-electron Integrals 2-center Complexes
URL	查看原文
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/37075
专题	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.