Environmental effects on electron spin relaxation in N@C60

Details Environmental effects on electron spin relaxation in N@C60 Environmental effects on electron spin relaxation in N@C60

2006-11-09

arxiv.org/abs/quant-ph/0611108v3

Physics

Quantum Physics

7 pages, 6 figures

Scientific paper

10.1103/PhysRevB.76.085418

We examine environmental effects of surrounding nuclear spins on the electron spin relaxation of the N@C60 molecule (which consists of a nitrogen atom at the centre of a fullerene cage). Using dilute solutions of N@C60 in regular and deuterated toluene, we observe and model the effect of translational diffusion of nuclear spins of the solvent molecules on the N@C60 electron spin relaxation times. We also study spin relaxation in frozen solutions of N@C60 in CS2, to which small quantities of a glassing agent, S2Cl2 are added. At low temperatures, spin relaxation is caused by spectral diffusion of surrounding nuclear 35Cl and 37Cl spins in the S2Cl2, but nevertheless, at 20 K, T2 times as long as 0.23 ms are observed.

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