Role of magnetic field on the variation of specific heat capacity of graphene.

Using Green's function approach, we have carried out the calculation of the specific heat capacity for graphene in the presence of the magnetic field. Strong and weak magnetic field splits the energy level of graphene into different Landau level whose density of state are well evaluated and presented graphically as a function of magnetic field and also energy eigenvalues. making use of this density of state, both theoretical and numerical evaluation of specific heat capacity is done. A fluctuating heat capacity with the rise in temperature is obtained for various strengths of the magnetic field. In addition, the applications of specific heat capacity knowledge in designing heat memory devices are discussed.