Theoretical study of the electronic structure and electrical properties of Al-doped niobium clusters

被引:13
作者
Pansini, F. N. N. [1 ]
de Campos, M. [2 ]
Neto, A. C. [1 ]
Sergio, C. S. [2 ]
机构
[1] Univ Fed Espirito Santo, Dept Fis, BR-29075910 Vitoria, ES, Brazil
[2] Univ Fed Roraima, Dept Fis, BR-69310000 Boa Vista, Parana, Brazil
关键词
DFT; Maximum hardness principle; Minimum polarizability principle; Doped clusters; Niobium clusters; NONLINEAR-OPTICAL-PROPERTIES; GAUSSIAN-BASIS SET; XE APPLICATION; ATOMS RB; POLARIZABILITIES; HARDNESS; THERMOCHEMISTRY; NANOCLUSTERS; POTENTIALS; REACTIVITY;
D O I
10.1016/j.chemphys.2020.110778
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
A methodology previously suggested for niobium clusters is here applied to the prediction of the ground spin-state of the niobium clusters doped with aluminum atoms. By using all-electron density functional theory with Douglas-Kroll-Hess correction, the spin-state, geometry, hardness, binding energy, ionization potential, electron affinity, and mean static dipole polarizability of the NbxAly clusters are examined. The ground spin-states obtained from the energy minimization were confronted with the results provided by the maximum hardness principle (MHP) and by the minimum polarizability principle (MPP). In general, the MHP and MPP have yielded the expected results, i.e., in agreement with the ones obtained from the minimum energy. Additionally, were compared the theoretical results for polarizability, ionization potential, and reactivity with the available experimental values.
引用
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页数:7
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