A class of experimental techniques known as hyperfine methods measure interactions between tracer nuclei and extranuclear electromagnetic fields (the hyperfine interaction). This set of methods can be used to study, as examples, magnetic structure and atomic-scale symmetry-breaking caused by point defects in crystalline materials. If measured interactions fluctuate at a rate comparable to the inverse time-scale of the hyperfine method, spectra will be damped and degree of damping related to the interaction fluctuation rate. In such a case, hyperfine methods can be used to study spin fluctuations and atomic jumps of point defects.

The purpose of this project is to simulate hyperfine spectra in the presence of fluctuating hyperfine interactions using stochastic models customized to describe the physics and chemistry of a problem of interest. This allows prediction of interesting systems to study experimentally, interpretation of experimental results, and, when incorporated with fitting software, determination of measured hyperfine fluctuation rates.

A class of experimental techniques known as hyperfine methods measure interactions between tracer nuclei and extranuclear electromagnetic fields (the hyperfine interaction). This set of methods can be used to study, as examples, magnetic structure and atomic-scale symmetry-breaking caused by point defects in crystalline materials. If measured interactions fluctuate at a rate comparable to the inverse time-scale of the hyperfine method, spectra will be damped and degree of damping related to the interaction fluctuation rate. In such a case, hyperfine methods can be used to study spin fluctuations and atomic jumps of point defects.

The purpose of this project is to simulate hyperfine spectra in the presence of fluctuating hyperfine interactions using stochastic models customized to describe the physics and chemistry of a problem of interest. This allows prediction of interesting systems to study experimentally, interpretation of experimental results, and, when incorporated with fitting software, determination of measured hyperfine fluctuation rates.