Environmental effects on electron spin relaxation in N@C60

Abstract

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.

7 pages, 6 figures

References in corpus (4)

• Towards a fullerene-based quantum computer
• Quantum theory of spectral diffusion induced electron spin decoherence
• Electron spin relaxation of N@C60 in CS2
• Single Electron Spin Decoherence by Nuclear Spin Bath: Linked Cluster Expansion Approach

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