Spin property improvement of boron vacancy defect in hexagonal boron nitride by thermal treatment

Autor:	Tetta Suzuki, Yuichi Yamazaki, Takashi Taniguchi, Kenji Watanabe, Yusuke Nishiya, Yu-ichiro Matsushita, Kazuya Harii, Yuta Masuyama, Yasuto Hijikata, Takeshi Ohshima
Rok vydání:	2023
Předmět:	General Engineering General Physics and Astronomy
Zdroj:	Applied Physics Express. 16:032006
ISSN:	1882-0786 1882-0778
Popis:	Negatively charged boron vacancy (V B –) in hexagonal boron nitride has attracted attention as a promising spin defect for quantum sensing applications. Hence, a fabrication method for generation of V B – with superior spin properties would be desirable. In this study, we demonstrated V B – formation by two thermal treatment methods. Both methods improve the signal-to-noise ratio of optically detected magnetic resonance signal by a factor of 4. Furthermore, a zero-field splitting parameter E which reflects crystal distortion after irradiation significantly reduces for irradiation above 650 °C. These findings indicate that thermal treatment is an effective method for a V B – based quantum sensor.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::5049d9fd50b8acfbcfe732cb6db4888f https://doi.org/10.35848/1882-0786/acc442 Zobrazit plný text záznamu