Induced superconductivity in HgTe nanowires

HgTe 纳米线的诱导超导

• 批准号: 238115510
• 负责人: Professor Dr. Laurens W. Molenkamp
• 金额: --
• 依托单位: Lehrstuhl für Experimentelle Physik III
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2019-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/238115510?language=en
• 关键词: Induced; superconductivity; HgTe; nanowires

The combination of topological insulators and superconductivity is predicted to lead to the existence of so called Majorana Fermion states. Majorana particles are their own anti-particle and are a prime candidate for the realization of topological quantum computation due to their non-abelian exchange statistics. A very promising route for the realization of Majorana Fermions is the combination of topological insulator nanowires and s-wave superconductors.The main objective of the second funding period is the investigation of superconductor/topological insulator hybrid structures in which we will search for signatures of unconventional superconductivity. HgTe nanowires are a promising candidate for such effects due to their topological insulator nature. We will specifically search for signatures of Majorana Fermions in these structures. For this purpose we will optimize our nanowires for low charge carrier densities and low defect densities. The investigations will be mainly carried out by means of electron transport.

拓扑绝缘子和超导性的结合预计将导致所谓的主要武器状态的存在。主要颗粒是它们自己的抗粒子，并且是由于其非亚洲交换统计数据而实现拓扑量子计算的主要候选者。实现Majorana Fermions的一条非常有希望的途径是拓扑绝缘子纳米线和S波超导体的组合。第二融资期的主要目标是研究超导剂/拓扑绝缘子混合结构，我们将在其中搜索是否有不行超导电的标志。 HGTE纳米线是由于其拓扑绝缘体性质而成为这种影响的有前途的候选人。我们将专门搜索这些结构中Majorana Fermions的签名。为此，我们将优化低电荷载体密度和低缺陷密度的纳米线。调查将主要通过电子传输进行。