Electron spin dynamics and spin–lattice relaxation of trityl radicals in frozen solutions

Trityl radicals: spin labels for nanometer-distance measurements.

Spin labelling with trityls: to gather information about the structure and dynamics of trityl radicals, spin-labelled polymers were measured with pulsed electron-electron double resonance (PELDOR) and double-quantum coherence (DQC). This study demonstrates that trityl radicals have great potential as spin labels that eliminate some limitations of nitroxide spin labels.

Proton Relaxation Times in Paramagnetic Solutions. Effects of Electron Spin Relaxation

Electron tunneling in lithium-ammonia solutions probed by frequency-dependent electron spin relaxation studies.

Electron transfer or quantum tunneling dynamics for excess or solvated electrons in dilute lithium-ammonia solutions have been studied by pulse electron paramagnetic resonance (EPR) spectroscopy at both X- (9.7 GHz) and W-band (94 GHz) frequencies. The electron spin-lattice (T(1)) and spin-spin (T(2)) relaxation data indicate an extremely fast transfer or quantum tunneling rate of the solvated ...

Electron Spin Relaxation of (Diphenyl) in Dimethoxyethane *

The electron relaxation times Tt and T2 have been measured by ESR pulse techniques in solutions of normal and perdeuterated (diphenyl)" in dimethoxyethane at various radical concentrations and temperatures. The results are discussed in terms of different relaxation mechanisms. The most important contribution to spin-lattice relaxation at high concentration is dipolar interaction with other radi...

Electron spin dynamics and electron spin resonance in graphene

A theory of spin relaxation in graphene including intrinsic, Bychkov-Rashba, and ripple spinorbit coupling is presented. We find from spin relaxation data by Tombros et al. (Nature, 448 (2007) 571) that intrinsic spin-orbit coupling dominates over other contributions with a coupling constant of 3.7 meV. Although it is 1–3 orders of magnitude larger than those obtained from first principles, we ...