Low temperature magneto-morphological characterisation of coronene and the resolution of previously observed unexplained phenomena.

ABSTRACT: The polyaromatic hydrocarbon coronene has been the molecule of choice for understanding the physical properties of graphene for over a decade. The modelling of the latter by the former was considered to be valid, as since it was first synthesised in 1932, the physical behaviour of coronene has been determined extremely accurately. We recently discovered however, an unforeseen polymorph of coronene, which exists as an enantiotrope with the previously observed crystal structure. Using low-temperature magnetisation and crystallographic measurements, we show here for the first time that the electronic and magnetic properties of coronene depend directly on the temperature at which it is observed, with hysteretic behaviour exhibited between 300 K and 100 K. Furthermore we determine that this beh

SUBMITTER: Potticary J 

PROVIDER: S-EPMC5141578 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature