Pd40Ni40P20优异玻璃化能力的结构根源。

IF 8.1 1区物理与天体物理 Q1 PHYSICS, MULTIDISCIPLINARY

Physical review letters Pub Date : 2012-04-27 Epub Date: 2012-04-24 DOI:10.1103/PhysRevLett.108.175501

P F Guan, T Fujita, A Hirata, Y H Liu, M W Chen

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引用次数: 109

摘要

我们报道了一种在大块金属玻璃Pd40Ni40P20中由共价键介导的“立体化学”结构和密集排列的二十面体组成的杂化原子填充方案。两种原子填充模型的共存可以同时满足类金属元素电荷饱和度和金属元素最密集原子填充的条件。混合填充方案揭示了Pd40Ni40P20优异玻璃化能力的结构根源，对理解金属-类金属合金的大块金属玻璃化具有重要意义。

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Structural origins of the excellent glass forming ability of Pd40Ni40P20.

We report a hybrid atomic packing scheme comprised of a covalent-bond-mediated "stereochemical" structure and a densely packed icosahedron in a bulk metallic glass Pd40Ni40P20. The coexistence of two atomic packing models can simultaneously satisfy the criteria for both the charge saturation of the metalloid element and the densest atomic packing of the metallic elements. The hybrid packing scheme uncovers the structural origins of the excellent glass forming ability of Pd40Ni40P20 and has important implications in understanding the bulk metallic glass formation of metal-metalloid alloys.

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来源期刊

Physical review letters 物理-物理：综合

CiteScore

16.50

自引率

7.00%

发文量

2673

审稿时长

2.2 months

期刊介绍： Physical review letters(PRL)covers the full range of applied, fundamental, and interdisciplinary physics research topics: General physics, including statistical and quantum mechanics and quantum information Gravitation, astrophysics, and cosmology Elementary particles and fields Nuclear physics Atomic, molecular, and optical physics Nonlinear dynamics, fluid dynamics, and classical optics Plasma and beam physics Condensed matter and materials physics Polymers, soft matter, biological, climate and interdisciplinary physics, including networks