Two studies still need to be carried out on FeTAC to elucidate its properties. One is an ac susceptibility measurement that will be carried out in collaboration with my colleague, Dr. Chris Landee, at Clark University. In this experiment the crystal is placed inside a coil of wire which is sensitive to changes in magnetic field. As the temperature is changed the magnetism is recorded. The purpose of the second study is to use neutrons to probe FeTAC's magnetism.
Neutrons are a great way to explore the internal magnetic fields inside matter.
The neutron has its own magnetic moment that will interact with the magnetic fields of the sample. Therefore, it gives us an internal picture of the magnetic interactions in a way similar to that by which the MRI gives us an internal picture of our body. A crystal this size has never been synthesized before. Holding together several large crystals will most likely solve this problem. Many people have studied FeTAC over the last decade, but it still has several mysteries.