Electrical control and read-out of color centers in diamond

钻石色心的电气控制和读出

• 批准号: 193753461
• 负责人: Professor Dr. Martin Stutzmann
• 金额: --
• 依托单位: Walter Schottky Institut für physikalische Grundlagen der Halbleiterelektronik (WSI)
• 依托单位国家: 德国
• 项目类别: Research Units
• 财政年份: 2011
• 资助国家: 德国
• 起止时间: 2010-12-31 至 2018-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/193753461?language=en
• 关键词: Electrical; control; read; out; color

This project aims at the development of the technology and the demonstration of proof-of-concepts for the electrical control and read-out of spin states of color centers in diamond, with a focus on nitrogen-vacancy (NV) centers. The electrical control of the charge state of color centers in diamond will be explored via two different concepts. On the one hand, charge injection and applied electric fields generated in local p-n hetero Heterodiodes based on nanowires of group Ill-nitrides on diamond will be employed under forward or reverse bias conditions to modify the charge state of color centers positioned in the vicinity of the heterojunction. ln a second development, we will explore the use of field-effect transistors based on surface conductive diamond to electrically control the surface band bending and, thus, the charge state of color centers implanted near the surface. Furthermore, this project also aims at demonstrating the electric readout of the spin states of NV centers in diamond via electrically detected magnetic resonance (EDMR) spectroscopy. This project consists of three main activity blocks: the development of novel architectures based on field-effect devices for the electrical control of color centers in diamond, the fabrication of AIGaN/diamond p-n heterodiodes via molecular beam epitaxy and the investigation of spindependent electronic transport in these devices.

该项目旨在开发技术和演示概念验证，用于金刚石色心的电子控制和自旋状态的读出，重点是氮空位（NV）中心。本文将从两个不同的概念出发，探讨金刚石色心电荷状态的电控制。一方面，在基于金刚石上的III族氮化物的纳米线的局部p-n异质二极管中产生的电荷注入和施加的电场将在正向或反向偏压条件下被采用，以修改位于异质结附近的色心的电荷状态。在第二个发展中，我们将探索使用基于表面导电金刚石的场效应晶体管来电控制表面能带弯曲，从而控制表面附近注入的色心的电荷状态。此外，本项目还旨在通过电检测磁共振（EDMR）光谱演示金刚石中NV中心自旋状态的电读出。该项目由三个主要活动模块组成：开发基于场效应器件的新型架构，用于金刚石色心的电控制、通过分子束外延制造AlGaN/金刚石p-n异质结二极管以及研究spindependent电子输运这些设备。