[21a-232-1~12] 6.2 Carbon-based thin films

△ [21a-232-8] Determination of the position of a single nuclear spin via nuclear spin precession detected by a diamond quantum sensor

〇Kento Sasaki¹, Itoh Kohei^1,2, Abe Eisuke² (1.Keio Univ. Sci., 2.Keio Univ. ARC)

Keywords:NV center, Quantum sensing, Nuclear Magnetic Resonance

A protocol to determine the position of nuclear spin is required for a molecular structure imaging using quantum sensor. We developed a protocol to evaluate the nuclear spin position via nuclear spin precession. The distance and polar angle of nuclear spin position is evaluated from hyperfine field strength. A dynamic nuclear polarization and radio frequency pulse are used to tip the nuclear spin, and the azimuthal angle is evaluated from the phase of the nuclear precession signal. Our protocol is examined with a ¹³C nuclear spin in diamond, and a lattice site of the target spin is identified. This protocol is useful to realize the single molecule imaging.