Polarizability of molecular chains: A self-interaction correction approach

Polarizability of molecular chains: A self-interaction correction approach
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分子链的极化率:一种自相互作用校正方法

DOI:
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发表时间:
2008
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通讯作者:
K. Burke
K. Burke
中科院分区:
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文献类型:
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作者:
C. D. Pemmaraju;S. Sanvito;K. Burke

文献摘要

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标准密度泛函近似大大高估了长链聚合物的静态极化率,但Hartree-Fock或精确交换计算没有。我们表明,简单的自相互作用校正的近似提供了一个可行的替代精确的极化率计算密度泛函理论。
Standard density functional approximations greatly overestimate the static polarizability of long-chain polymers, but Hartree-Fock or exact exchange calculations do not. We show that simple self-interaction corrected approximations afford a viable alternative for accurate polarizability calculations within density functional theory.