Name: Malcolm Levitt
Date registered: July 19, 2012
Sep 19
The routine EnsembleAverage may be used to generate arbitrary distributions of nuclear spin interactions. In an example posted on the forum, I used EnsembleAverage to generate the spectrum of 133Cs (I=7/2) in an inhomogeneous gel. The same notebook includes a simulation of quadrupolar echoes in spin-7/2 with curious fractional timings.
Sep 19
At the present time, the case of spin systems experiencing chemical exchange cannot be handled entirely within the architecture of SpinDynamica. However, it is possible to build upon SpinDynamica to handle chemical exchange. I have posted an example file on the forum showing how to simulate an AB spin system of two spins-1/2 experiencing chemical …
Mar 17
SpinDynamica code for the interactive visualization of Euler angles is available here: EulerVisualization
Feb 07
A notebook for producing 3D animations of composite pulses is available here: https://www.dropbox.com/s/yam19kdjo8qtwva/CompositePulseAnimation.nb The plot shown is a single frame from one such animation.
Jul 24
DeVience, Walsworth and Rosen have used SpinDynamica to develop a new method for generating long-lived nuclear singlet order, and to plot the trajectories of the spin operators during the pulse sequence. See http://arxiv.org/abs/1307.0832
Apr 22
Andreas Brinkmann has used SpinDynamica to simulate 14N overtone NMR. See http://dx.doi.org/10.1063/1.4775592
Mar 28
Download the code here: RelaxationAndPrecession.nb
