Influence of longitudinal electric field on the oscillating magnetocaloric effect of graphenes

The present effort explores the influence of a longitudinal applied electric field on the magnetocaloric properties of graphenes. The magnetic entropy change Δ S ( T , Δ B , E ) has two contributions: S cos ( T , B , E ) with an oscillating character on m, inversely proportional to the magnetic field; and S per ( T , B , E ) with a periodic character also on m. In comparison to the case without electric field, the maximum value of the magnetic entropy change either increases or decreases due to an applied electric field, depending on the value of m; and, in addition, the temperature in which the maximum entropy change occurs decreases due to the electric field.