Topic
Relaxation (NMR)
About: Relaxation (NMR) is a research topic. Over the lifetime, 29342 publications have been published within this topic receiving 689851 citations.
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TL;DR: In this article, the authors applied the dynamical model of rotational diffusion of rod-shaped molecules in a conical volume to the calculation of time autocorrelation functions of 1st and 2nd order spherical harmonic functions of the rod's orientation angles.
Abstract: The dynamical model of rotational diffusion of rod‐shaped molecules in a conical volume is applied to the calculation of time autocorrelation functions of 1st and 2nd order spherical harmonic functions of the rod’s orientation angles. Numerical results are obtained for the various correlation functions as a function of the polar angle ϑ0 within which the molecule’s axis is confined. Applications to dielectric relaxation, dynamic light scattering, and fluorescence depolarization experiments are pointed out.
215 citations
TL;DR: Electrical relaxation experiments have been performed with phosphatidylinositol bilayer membranes in the presence of the ion carrier valinomycin, and the equilibrium constant of the heterogeneous association reaction M(+) (solution) + S (membrane) --> MS(+) (memBRane) is found to be approximately 1 M(-1), about 10(6) times smaller than the association constant in ethanolic solution.
215 citations
TL;DR: In this paper, phonon induced electronic dynamics in the ground and excited states of the negatively charged silicon-vacancy center in diamond were investigated for the temperature range 4 K?350 K. The ground state orbital relaxation rates were measured using time-resolved fluorescence techniques.
Abstract: We investigate phonon induced electronic dynamics in the ground and excited states of the negatively charged silicon-vacancy () centre in diamond. Optical transition line widths, transition wavelength and excited state lifetimes are measured for the temperature range 4 K?350 K. The ground state orbital relaxation rates are measured using time-resolved fluorescence techniques. A microscopic model of the thermal broadening in the excited and ground states of the centre is developed. A vibronic process involving single-phonon transitions is found to determine orbital relaxation rates for both the ground and the excited states at cryogenic temperatures. We discuss the implications of our findings for coherence of qubits in the ground states and propose methods to extend coherence times of qubits.
215 citations
TL;DR: In this article, the authors presented a method of analyzing relaxation decay curves in terms of continuous distributions of relaxation times, rather than depending on a priori assumptions, the experimental data determine the number and character of the components.
213 citations
213 citations