Room-temperature coherent control of implanted defect spins in silicon carbide

Author:

Yan Fei-Fei,Yi Ai-LunORCID,Wang Jun-Feng,Li Qiang,Yu Pei,Zhang Jia-Xiang,Gali AdamORCID,Wang Ya,Xu Jin-ShiORCID,Ou Xin,Li Chuan-Feng,Guo Guang-Can

Abstract

AbstractRecently, vacancy-related spin defects in silicon carbide (SiC) have been demonstrated to be potentially suitable for versatile quantum interface building and scalable quantum network construction. Significant efforts have been undertaken to identify spin systems in SiC and to extend their quantum capabilities using large-scale growth and advanced nanofabrication methods. Here we demonstrated a type of spin defect in the 4H polytype of SiC generated via hydrogen ion implantation with high-temperature post-annealing, which is different from any known defects. These spin defects can be optically addressed and coherently controlled even at room temperature, and their fluorescence spectrum and optically detected magnetic resonance spectra are different from those of any previously discovered defects. Moreover, the generation of these defects can be well controlled by optimizing the annealing temperature after implantation. These defects demonstrate high thermal stability with coherently controlled electron spins, facilitating their application in quantum sensing and masers under harsh conditions.

Publisher

Springer Science and Business Media LLC

Subject

Computational Theory and Mathematics,Computer Networks and Communications,Statistical and Nonlinear Physics,Computer Science (miscellaneous)

Reference36 articles.

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