Structural and electronic evidence of boron atomic chains
Structural and electronic evidence of boron atomic chains
复制标题
DOI：
10.1103/physrevb.106.205406
复制
发表时间：
2022-11-15
影响因子：
3.7
通讯作者：
Matsuda, Iwao
中科院分区：
文献类型：
--
作者：
Tsujikawa, Yuki;Horio, Masafumi;Matsuda, Iwao
用正电子衍射、光电子能谱和第一性原理计算相结合的方法，得到了与聚枯烯等电子的硼链的结构和化学状态。在本工作中，在金属晶体衬底上的硼化铜层中发现了硼链阵列。这种材料的能带结构被确定为电子掺杂和相邻的铜原子杂化。这些硼原子链表现出独特的亲电特性，这是特定的元素。系统地研究了硼化铜层中硼链的性质和衬底效应。
The structure and chemical state of a boron chain, isoelectronic to polycumulene, were obtained with a combination of positron diffraction, photoelectron spectroscopy, and first-principles calculations. In the present work, an array of boron chains was found in a copper boride layer on a metal crystal substrate. The band structure of this material was determined to be electronically doped and hybridized by neighboring copper atoms. These boron atom chains exhibit a unique electrophilic character that is specific to the element. The properties of boron chains in the copper boride layer and the substrate effect are systematically investigated together.