Synthesis of novel Mn3O4 concave octahedral microcrystals and their anomalous magnetic properties
Abstract
Concave octahedral Mn3O4 microcrystals were synthesized. The magnetic properties of the obtained concave octahedral Mn3O4 microcrystals were investigated from 5 K to 300 K. The blocking temperature was 41.1 K. The Curie–Weiss temperature was 43.5 K, which was higher than that of bulk single-crystal Mn3O4 (42 K).