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Studies on Electronic Structure and Magnetic Properties of an Organic Magnet with Metallic Mn^2+ and Cu^2+ Ions
作者姓名:YAOJian-Guo  PENGGuang-Xiong
作者单位:[1]DepartmentofBasicSciences,HubeiAutomotiveIndustriesInstitute,Shiyan442002,China [2]InstituteofHighEnergyPhysics,theChineseAcademyofSciences,Beijing100039,China
摘    要:The electronic structure and the magnetic properties of the non-pure organic ferromagnetic compound MnCu(pbaOH)(H2O)3 with pbaOH=2-hydroxy-1, 3-propylenebis (oxamato) are studied by using the density-functional theory with local-spin-density approximation. The density of states, total energy, and the spin magnetic moment are calculated. The calculations reveal that the compound MnCu(pbaOH)(H2O)3 has a stable metal-ferromagnetic ground state, and the spin magnetic moment per molecule is 2.208 μa, and the spin magnetic moment is mainly from Mn ionand Cu ion. An antiferromagnetic order is expected and the antiferromagnetic exchange interaction of d-electrons of Cu and Mn passes through the antiferromagnetic interaction between the adjacent O, 0, and N atoms along the path linking the atoms Cu and Mn.

关 键 词:密度函数  不纯有机磁铁  电子结构  铁磁体性质
收稿时间:2003-12-19

Studies on Electronic Structure and Magnetic Properties of an Organic Magnet with Metallic Mn2+ and Cu2+ Ions
YAOJian-Guo PENGGuang-Xiong.Studies on Electronic Structure and Magnetic Properties of an Organic Magnet with Metallic Mn2+ and Cu2+ Ions[J].Communications in Theoretical Physics,2004,42(5):798-800.
Authors:YAO Jian-Guo and  PENG Guang-Xiong
Institution:1. Department of Basic Sciences, Hubei Automotive Industries Institute, Shiyan 442002, China ;2. Institute of High Energy Physics, the Chinese Academy of Sciences, Beijing 100039, China
Abstract:The electronic structure and the magnetic properties of the non-pure organic ferromagnetic compound MnCu(pbaOH)(H2O)3 with pbaOH = 2-hydroxy-1, 3-propylenebis (oxamato) are studied by using the density-functional theory with local-spin-density approximation. The density of states, total energy, and the spin magnetic moment are calculated. The calculations reveal that the compound MnCu(pbaOH)(H20)3 has a stable metal-ferromagnetic ground state, and the spin magnetic moment per molecule is 2.208 μB, and the spin magnetic moment is mainly from Mn ion and Cu ion. An antiferromagnetic order is expected and the antiferromagnetic exchange interaction of d-electrons of Cu and Mn passes through the antiferromagnetic interaction between the adjacent C, O, and N atoms along the path linking the atoms Cu and Mn.
Keywords:density-functional theory  non purely organic magnet  electronic structure    ferromagnetic properties                                                                                                    
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