2021年第68回応用物理学会春季学術講演会

講演情報

一般セッション(口頭講演)

6 薄膜・表面 » 6.2 カーボン系薄膜

[18p-Z13-1~12] 6.2 カーボン系薄膜

2021年3月18日(木) 14:00 〜 17:30 Z13 (Z13)

石川 豊史(産総研)、清水 麻希(埼玉大学)

15:00 〜 15:15

[18p-Z13-5] Formation of Nitrogen-Vacancy centers in nanodiamonds: Size and type dependence

〇(D)TzeKit Frederick So1,2、Alexander I. Shames3、Daiki Terada1,2、Takuya Genjo1,2、Hiroki Morishita1、Izuru Ohki1、Takeshima Ohshima2、Shinobu Onoda2、Hideaki Takashima1、Shigeki Takeuchi2、Eiji Osawa4、Norikazu Mizuochi1、Ryuji Igarashi2、Masahiro Shirakawa1,2、Takuya F. Segawa1,5 (1.Kyoto Univ.、2.QST、3.Ben-GurionUniv.Negev、4.NanoCarbon Inst.、5.ETH)

キーワード:Nanodiamonds, Negatively-charged nitrogen-vacancy (NV-)

Negatively-charged nitrogen-vacancy (NV-) defects in nanodiamonds are a promising nano-scale probe for quantum sensing with excellent bio-compatibility. To maximize the potential of this versatile tool, the smallest type of nanodiamonds that carries NV- defects are highly desirable and are available in the form of 5-nanometer detonation nanodiamonds (DNDs). Previously, we discovered that the common NV- formation mechanism may not be applied to DNDs. To investigate the reasons behind this phenomenon, the NV- formation process is studied experimentally in a series of nanodiamonds with different sizes and origin (DNDs, nanonized high-pressure-high-temperature diamonds), and additional simulations complete the mechanistic understanding.