Magnetic transitions in delafossite CuFeO2: A magnetocaloric effect study

Publication date: Available online 12 July 2019Source: Physics Letters AAuthor(s): Lei Zhang, Bernard A. Goodman, DingKang Xiong, Wen DengAbstractCuFeO2 was synthetized by a solid-state reaction and its low temperature magnetic properties investigated using the magnetocaloric effect. Magnetic susceptibility measurements show that there are two magnetic transition temperatures at about 16 and 11 K. Measurement of isothermal magnetization curves for different applied magnetic fields near these temperatures show a reversal in the magnetization trend around 11 K, and Arrott plots indicate they are accompanied by second- and first-order magnetic phase transitions, respectively. Both normal and inverse magnetocaloric effects are observed, and the maximum magnetic entropy change is obtained at 11 K.

Source: Physics Letters A - July 13, 2019 Category: Physics Source Type: research