Magnetic correlations in Mn3GaC and Mn3GaCN
Mn3GaC undergoes a first order antiferromagnetic-ferromagnetic (AF_FM) transition at Ti = 160 K and a second order ferromagnetic-paramagnetic (PM) transition at TC = 250 K. Substituting partially carbon with nitrogen [Mn3Ga(C0.85N0.15)]causes Ti to increase to 180 K whereas TC drops such that it lies virtually below Ti, i.e. long-range ferromagnetism does not occur and only strong ferromagnetic correlations can be observed in the temperature dependence of the magnetization. These materials show field induced transformations from the low-temperature AF state to the high temperature FM (or FM correlated) state giving rise to large magnetocaloric effects. Using polarization analysis and neutron depolarization, we aim to study the nature of magnetic correlations as the first order transition is approached and at high temperatures, above the second order transition, to examine whether mixed AF and FM correlations appear already at temperatures well in the PM regime.
Please note that you will need to login with your ILL credentials to download the data.
Download DataThe recommended format for citing this dataset in a research publication is in the following format:
ACET Mehmet; CAKIR Oznur and WILDES Andrew. (2013). Magnetic correlations in Mn3GaC and Mn3GaCN. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-32-779
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.