[10p-N101-1~17] CS.8 Code-sharing session of 6.2 &KS1

2:15 PM - 2:30 PM JST(5:15 AM - 5:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10p-N101-3] Orientation-Ratio Mapping of Preferentially Oriented NV Centers Generated on Diamond Microhole Structures

〇(D)Koki Imuta^1,2,4, Yohei Oikawa^1,2, Rui Suzuki^1,2, Kan Hayashi³, Norio Tokuda³, Hideyuki Watanabe⁴, Junko Ishi-Hayase^1,2 (1.Keio Univ., 2.Keio CSRN, 3.ARCDia Kanazawa Univ., 4.AIST)

Keywords:

quantum sensor,NV center,preferentially oriented

For highly sensitive magnetic-field sensing using nitrogen-vacancy (NV) centers in diamond, it is important to generate highly oriented NV centers with aligned crystallographic orientations. In this study, we systematically evaluated the measurement accuracy and reliability of a mapping-based characterization method for visualizing the spatial distribution of the orientation ratio of highly oriented NV centers generated by CVD growth on a (001) diamond substrate with {111}-faceted inverted-pyramid-shaped holes. Furthermore, we investigated how the fabrication method, growth conditions, surface state, and hole geometry affect the properties of the NV centers.