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. 2017 Mar 3;8:14660. doi: 10.1038/ncomms14660

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Copyright © 2017, The Author(s)

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(a) Signal patterns of a type-h ¹³C spin pair in a C–C bond ≈1.0 nm away from the NV centre, using the interaction time τ=10 μs and length of RF driving t_rf≈2 ms. The dipolar coupling strength d_j,k≈2π × 1.37 kHz. The hyperfine components of the two spins kHz and kHz. (b) Same as a but for a type-d pair located ≈1.55 nm away from the NV centre and τ=50 μs, and the hyperfine components of the two spins kHz and kHz have similar strengths. The parameters used in c,d are indicated by the circles in a,b, respectively.

Inline graphic — (a) Signal patterns of a type-h ¹³C spin pair in a C–C bond ≈1.0 nm away from the NV centre, using the interaction time τ=10 μs and length of RF driving t_rf≈2 ms. The dipolar coupling strength d_j,k≈2π × 1.37 kHz. The hyperfine components of the two spins kHz and kHz. (b) Same as a but for a type-d pair located ≈1.55 nm away from the NV centre and τ=50 μs, and the hyperfine components of the two spins kHz and kHz have similar strengths. The parameters used in c,d are indicated by the circles in a,b, respectively.