Nanomolding of metastable Mo4P3
Nanomolding of metastable Mo4P3
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DOI：
10.1016/j.matt.2023.03.023
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发表时间：
2023-04
期刊：
影响因子：
18.9
通讯作者：
M. Kiani;Quynh P Sam;Gangtae Jin;B. Pamuk;H. Han;J. Hart;J.R. Stauff;J. Cha
中科院分区：
文献类型：
--
作者：
M. Kiani;Quynh P Sam;Gangtae Jin;B. Pamuk;H. Han;J. Hart;J.R. Stauff;J. Cha
降维导致量子材料中的涌现现象，并且需要加速在降低的维度中的纳米级量子材料的材料发现。热机械纳米成型是一种快速合成方法，可以生产高质量的单晶纳米线，其尺寸在晶圆级尺寸上可控。在这里，我们应用纳米成型制造纳米线从散装原料的钼，三点拓扑金属具有极高的导电性，是有前途的低电阻互连。令人惊讶的是，我们得到了单晶Mo4P3纳米线，这是一个亚稳相，在室温和大气压。因此，我们证明，纳米成型可以创建亚稳相无法通过其他纳米材料合成，并可以探索以前无法在高温和高压下的合成空间。此外，我们的研究结果表明，目前对纳米成型的界面固体扩散的理解是不完整的，这为在受限尺寸的高压和高温制度下探索固态扩散提供了机会。
Reduced dimensionality leads to emergent phenomena in quantum materials, and there is a need for accelerated materials discovery of nanoscale quantum materials in reduced dimensions. Thermomechanical nanomolding is a rapid synthesis method that produces high-quality single-crystalline nanowires with controlled dimensions over wafer-scale sizes. Herein, we apply nanomolding to fabricate nanowires from bulk feedstock of MoP, a triple-point topological metal with extremely high conductivity that is promising for low-resistance interconnects. Surprisingly, we obtained single-crystalline Mo4P3nanowires, which is a metastable phase at room temperature and atmospheric pressure. We thus demonstrate that nanomolding can create metastable phases inaccessible by other nanomaterial syntheses and can explore a previously inaccessible synthesis space at high temperatures and pressures. Furthermore, our results suggest that the current understanding of interfacial solid diffusion for nanomolding is incomplete, providing opportunities to explore solid-state diffusion at high-pressure and high-temperature regimes in confined dimensions.