Temperature evolution of short range spin correlations in ordered and disordered Co5TeO8 spinels
We would like to investigate features of short range magnetic correlations of recently discovered Co5TeO8. This compound itself has two polymorphs, one is a classical Fd-3m and another one - P4332 ordered spinel. While disordered polymorph has a single magnetic phase transition at 40 K with an emergence of a collinear ferrimagnetic ordering, ordered one demonstrates two magnetic phase transitions: firstly, a transition to an incommensurate-spiral phase below 50 K which allows an electric polarization and therefore a ferroelectric transition followed by emergence of collinear ferrimagnetic component and suppression of spiral component at 30 K. Nevertheless neutron powder diffraction reveal strong magnetic diffuse scattering in wide temperature ranges: 60 – 1.7 K for disordered and 75 - 30 K for ordered Co5TeO8 indicating a presence of short range magnetic ordering within both systems. With present proposal we would like to carry out a polarized neutron experiment at D7 to evaluate a temperature evolution of spin correlations and thus to characterize short range magnetic ordering and mechanisms of phase transitions in ordered and disordered Co5TeO8.
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:
PODCHEZERTSEV Stanislav; BARRIER Nicolas; MANGIN-THRO Lucile; PAUTRAT Alain and SUARD Emmanuelle. (2018). Temperature evolution of short range spin correlations in ordered and disordered Co5TeO8 spinels. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-32-858
ILL has partnered with DataCite as the registration agency
for data persistent identifiers.