Figure 5: Phonon-induced spin dephasing and decay.
From: Coherent control of the silicon-vacancy spin in diamond
(a) Evolution of the spin dephasing rate 1/T2* (blue dots) and orbital population decay rate taken as 1/(2T1,orbital) (grey dots) as a function of temperature. The solid grey curve is a linear fit of the variation of 1/(2T1,orbital). (b) Temperature dependence of the spin decay rate 1/(2T1,spin). The solid purple curve is a linear fit of the experimental values. In a,b, the error bars correspond to the s.e.s. on the fit parameter T2*, T1,orbital and T1,spin, respectively. In both figures, the y axis on the right indicates the coherence times corresponding to the rates of the left axis. The temperature is measured below the sample mount, and, due to heating from the microwave, is expected to be lower than the temperature at the SiV−.
