Crossover between tricritical and Lifshitz points in pyrochlore FeF${}_3$

Mohammad Amirabbasi, Nafiseh Rezaei, Mojtaba Alaei +2

Pyrochlore FeF${}_3$ (pyr-FeF${}_3$) is a Heisenberg anti-ferromagnetic (AF) with a magnetic susceptibility deviating from the Curie-Weiss law, even at the room temperature. This c…