2006/11/30 by John J. L. Morton, Alexei M. Tyryshkin, Arzhang Ardavan +3
Chemistry · Materials Science · Physics and Astronomy · #Atomic physics #Carbon Nanotubes in Composites #Chemistry #Condensed matter physics #Crystallography #Diamond and Carbon-based Materials Research #Fullerene Chemistry and Applications #Nuclear magnetic resonance #Physics #Relaxation (psychology) #Spin (aerodynamics) #Spins #Thermodynamics #quant-ph
paper · pdf · doi:10.1103/physrevb.76.085418
7 pages, 6 figures
arxiv created 2007/04/15 · openalex publication_date 2007/08/16 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
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 center 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 35,37Cl spins in the S2Cl2, but, nevertheless, at 20\phantom\rule0.3em0exK, T2 as long as 0.23\phantom\rule0.3em0exms is observed.