Coherent control of an ultrabright single spin in hexagonal boron nitride at room temperature

Nai-Jie Guo, Song Li, Wei Liu, Yuan-Ze Yang, Xiao-Dong Zeng, Shang Yu, Yu Meng, Zhi-Peng Li, Zhao-An Wang, Lin-Ke Xie, Rong-Chun Ge, Jun-Feng Wang, Qiang Li, Jin-Shi Xu, Yi-Tao Wang (), Jian-Shun Tang (), Adam Gali (), Chuan-Feng Li () and Guang-Can Guo
Additional contact information
Nai-Jie Guo: University of Science and Technology of China
Song Li: Wigner Research Centre for Physics
Wei Liu: University of Science and Technology of China
Yuan-Ze Yang: University of Science and Technology of China
Xiao-Dong Zeng: University of Science and Technology of China
Shang Yu: University of Science and Technology of China
Yu Meng: University of Science and Technology of China
Zhi-Peng Li: University of Science and Technology of China
Zhao-An Wang: University of Science and Technology of China
Lin-Ke Xie: University of Science and Technology of China
Rong-Chun Ge: Sichuan University
Jun-Feng Wang: University of Science and Technology of China
Qiang Li: University of Science and Technology of China
Jin-Shi Xu: University of Science and Technology of China
Yi-Tao Wang: University of Science and Technology of China
Jian-Shun Tang: University of Science and Technology of China
Adam Gali: Wigner Research Centre for Physics
Chuan-Feng Li: University of Science and Technology of China
Guang-Can Guo: University of Science and Technology of China

Nature Communications, 2023, vol. 14, issue 1, 1-8

Abstract: Abstract Hexagonal boron nitride (hBN) is a remarkable two-dimensional (2D) material that hosts solid-state spins and has great potential to be used in quantum information applications, including quantum networks. However, in this application, both the optical and spin properties are crucial for single spins but have not yet been discovered simultaneously for hBN spins. Here, we realize an efficient method for arraying and isolating the single defects of hBN and use this method to discover a new spin defect with a high probability of 85%. This single defect exhibits outstanding optical properties and an optically controllable spin, as indicated by the observed significant Rabi oscillation and Hahn echo experiments at room temperature. First principles calculations indicate that complexes of carbon and oxygen dopants may be the origin of the single spin defects. This provides a possibility for further addressing spins that can be optically controlled.

Date: 2023
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DOI: 10.1038/s41467-023-38672-6

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