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中等尺寸磷团簇Pn(n=21-29)基态结构的遗传算法搜索

Release Time:2019-03-11  Hits:

Indexed by: Journal Article

Date of Publication: 2017-06-28

Journal: 原子与分子物理学报

Volume: 34

Issue: 3

Page Number: 441-446

ISSN: 1000-0364

Key Words: 磷团簇;遗传算法;结构;稳定性

Abstract: 应用遗传算法结合第一性原理密度泛函理论,对中等尺寸的磷团簇体系Pn(n=21-29)做了全局搜索,研究其基态结构和电子性质.研究结果显示中等尺寸磷团簇的结构较为复杂,整体结构为管状链式结构,绝大部分没有对称性或对称性很低.团簇体系的二阶能量差分和HOMO-LUMO能隙都存在奇偶振荡,其中偶数尺寸的磷团簇要比奇数尺寸具有相对更高的稳定性.

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