• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Applied Surface Science >Atomically Precise Self-assembly Of One-dimensional structures On Silicon
【24h】

Atomically Precise Self-assembly Of One-dimensional structures On Silicon

机译：硅上一维结构的原子精确自组装

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This work has three main themes: (1) fabricate atomicaliy precise nanostructures at surfaces, particularly nanowires consisting of atom chains; (2) explore the behavior of one-dimensional electrons in atomic chains; (3) find the fundamental limits of data storage using an atomic scale memory. Semiconductor surfaces lend themselves towards self-assembly, because the broken covalent bonds create elaborate reconstruction patterns to minimize the surface energy. An example is the large 7×7 unit cell on Si(111), which can be used as building block. On semiconductors, the surface electrons completely de-couple from the substrate, as long as their energy lies in the band gap. Angle-resolved photoemission reveals surprising features, such as a fractional band filling and a spin-splitting at a non-magnetic surface. An interesting by-product is a memory structure with self-assembled tracks that are five atom rows wide and store a bit by the presence or absence of a single silicon atom. This toy memory is used to test the fundamental limits of data storage and to see how storage on silicon compares to storage in DNA.
机译：这项工作有三个主要主题：（1）在表面上制造原子精确的纳米结构，特别是由原子链组成的纳米线； （2）探索原子链中一维电子的行为； （3）找到使用原子尺度存储器进行数据存储的基本限制。半导体表面倾向于自组装，因为断裂的共价键会形成精细的重构图案，从而使表面能最小化。一个示例是Si（111）上的7×7大型单元，可以用作构造块。在半导体上，只要表面电子的能量位于带隙中，它们就会完全与衬底解耦。角度分辨的光发射显示出令人惊讶的特征，例如分数带填充和非磁性表面的自旋分裂。一个有趣的副产品是具有自组装磁道的存储结构，该磁道宽为五个原子行，并通过存在或不存在单个硅原子来存储一点。该玩具存储器用于测试数据存储的基本限制，并了解硅上的存储与DNA中的存储相比。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号