An important figure of merit for the performance of single-molecule magnets (SMMs) is the 100 s blocking temperature TB100. It is the temperature at which the remanence or zero field relaxation time is 100 seconds. If there is more than one relaxation process of the magnetisation, the determination of the relaxation times may, however, become ambiguous. Here we propose an operational definition for the zero-field magnetic relaxation times from which TB100 may be determined. This definition allows for a direct comparison of the performance of different samples independent of the details of the relaxation processes involved in the demagnetization.
@article{arxiv.1506.03657,
title = {An operational definition of the 100 second blocking temperature T$_{\mathrm{B}100}$ for single molecule magnets},
author = {Rasmus Westerström and Alexey Popov and Thomas Greber},
journal= {arXiv preprint arXiv:1506.03657},
year = {2015}
}