The peaks are (in cm -1 ): The maghemite is a ferrimagnetic material at room temperature. "By contrast", hematite "is weakly ferromagnetic at room temperature due to the Dzyaloshinsky-Moriya mechanism and is antiferromagnetic below 263 K (referred to as the Morin temperature, TM)" (Dar and Shivashankar, 2014). Dar and Shivashankar studied the magnetism of the nanoparticles they prepared.