Table 1 Computed coherence time T2 = αη−β of diamond and graphite, as obtained by fitting the curves shown in Fig. 1, where η is the 13C concentration

From: Spin coherence in two-dimensional materials

 

Diamond

Graphite

Bulk

4 nm

2 nm

1 nm

Bulk

3-layer

1-layer

α (ms)

0.97

1.07

1.52

2.66

1.38

3.99

12.56

β

0.95

1.01

1.11

1.25

0.99

1.35

1.57

  1. The tables shows the parameters α (ms) and β. The constant α is equal to the T2 value at 1% 13C concentration, while β, which is the slope in Fig. 1, represents the sensitivity of T2 to nuclear spin concentration.
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